@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

/* Renkler, gölgeler ve yarıçaplar için kök değişkenler */
:root {
    /* YAŞAR ÜNİVERSİTESİ TEMASI */
    --primary: #00407B; /* Koyu Lacivert/Kurumsal Mavi (Logodan) */
    --primary-dark: #002D59; /* Daha Koyu Lacivert (Daha belirgin hover ve gölge) */
    --secondary: #0073B7; /* Canlı Mavi/Açık Kurumsal Mavi (Vurgu) */
    --accent: #F2C94C; /* Altın Sarısı (Ek vurgu) */
    --success: #10b981; /* Yeşil */
    --danger: #ef4444; /* Kırmızı */
    --warning: #f59e0b; /* Turuncu */

    --bg-primary: #FFFFFF; /* Saf Beyaz */
    --bg-secondary: #F8F8F8; /* Çok Açık Gri */
    --bg-card: #ffffff;
    --bg-input: #ffffff;

    --text-primary: #1A1A1A; /* Koyu Metin */
    --text-secondary: #475569;
    --text-muted: #64748b;

    --border: #e2e8f0;
    --border-focus: var(--primary);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    /* Dinamik Ders Renkleri Paleti */
    --color-1: #0073B7; /* Secondary */
    --color-2: #F2C94C; /* Accent/Sarı */
    --color-3: #10b981; /* Success */
    --color-4: #a855f7; /* Mor */
    --color-5: #ef4444; /* Kırmızı */
    --color-6: #ec4899; /* Pembe */
    --color-7: #6366f1; /* İndigo */
    --color-8: #f97316; /* Turuncu */
    --color-9: #0d9488; /* Teal */
    --color-10: #84cc16; /* Lime */

    /* Saydam Ders Renkleri (0.4 opacity) */
    --color-1-alpha: rgba(0, 115, 183, 0.4);
    --color-2-alpha: rgba(242, 201, 76, 0.4);
    --color-3-alpha: rgba(16, 185, 129, 0.4);
    --color-4-alpha: rgba(168, 85, 247, 0.4);
    --color-5-alpha: rgba(239, 68, 68, 0.4);
    --color-6-alpha: rgba(236, 72, 153, 0.4);
    --color-7-alpha: rgba(99, 102, 241, 0.4);
    --color-8-alpha: rgba(249, 115, 22, 0.4);
    --color-9-alpha: rgba(13, 148, 136, 0.4);
    --color-10-alpha: rgba(132, 204, 22, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-weight: 400;
    min-height: 100vh;
    padding: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
}

/* Yeni Arka Plan Etkisi */
.background-radial-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Yeni primary ve secondary renklerini kullan */
    background: radial-gradient(circle at 25% 25%, var(--primary) 0%, transparent 50%),
                radial-gradient(circle at 75% 75%, var(--secondary) 0%, transparent 50%);
    opacity: 0.15;
    z-index: -1;
    animation: backgroundMove 20s infinite alternate ease-in-out;
}

@keyframes backgroundMove {
    0% { transform: scale(1); }
    100% { transform: scale(1.2); }
}

.body-no-scroll {
    overflow: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.5);
    overflow: hidden;
    backdrop-filter: blur(20px);
    transition: all 0.3s ease-in-out;
    min-width: 0;
}

.header {
    min-height: 80px;
    background: rgba(255, 255, 255, 0.2);
    padding: 1.5rem 2rem;
    position: relative;
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    flex-wrap: wrap;
    gap: 1rem;
}

.header::before {
    display: none;
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    gap: 1rem;
    transition: all 0.3s ease;
}

.header-logo:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.header-logo-image {
    height: 2.5rem;
    width: auto;
}

.header-text-group {
    display: flex;
    flex-direction: column;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex-shrink: 1;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.025em;
     white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.header-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;

}

.header-links {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    flex-shrink: 0;
    min-width: fit-content;
}

.header-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    white-space: nowrap;
    min-width: fit-content;
}

.header-link:hover {
    /* Primary rengini kullan */
    color: var(--primary);
    transform: translateY(-2px);
}

.header-link .link-text {
    display: none;
    white-space: nowrap;
}

.lang-switcher-images {
    display: flex;
    gap: 0.5rem;
}

.lang-flag {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.lang-flag:hover {
    transform: scale(1.1);
}

.lang-flag.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 64, 123, 0.4);
}


/* Responsive Tasarım */
@media (min-width: 768px) {
    .header-links {
        gap: 2rem;
    }

    .header-link {
        font-size: 1rem;
    }

    .header-link .link-text {
        display: inline;
    }
}
@media (max-width: 500px) {
    .header-logo {
        gap: 0.5rem;
    }

    .header-logo-image {
        height: 2rem;
    }

    .header-title {
        font-size: 1.1rem;
        white-space: normal;
    }

    .header-subtitle {
        font-size: 0.8rem;
        white-space: normal;
    }

    .header-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .header-link {
        font-size: 0.9rem;
    }
}

.content {
    padding: 2.5rem;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2rem;

}

#generate-single-btn,
#generate-joint-btn {
    width: 100%;
    margin-top: -1rem;
    align-self: center;
}

.section {
    margin-bottom: 0;
}


.text-container {
    min-width: 0;
    word-wrap: break-word;
    hyphens: auto;
}

.contact-link {
    word-break: break-all;
    hyphens: auto;
}

.tabs-container {
    display: flex;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.5rem;
    margin-bottom: 2rem;
    gap: 0.5rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    min-height: 50px;
}

.tab {
    padding: 0.75rem 1.25rem;
    text-align: center;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    min-width: fit-content;
    flex: 1 1 auto;
}

.tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.tab span {
    position: relative;
    z-index: 1;
}

.tab:hover {
    color: var(--primary);
    transform: translateY(-1px);
}

.tab.active {
    background: var(--bg-card);
    color: var(--primary);
    box-shadow: var(--shadow-md);
    font-weight: 600;
}

.tab.active::before {
    opacity: 0.1;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.5s ease-out;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Tekil Program Ana Konteyneri Stili (Ortak Programa Benzer Tek Kart Görünümü) */
.single-program-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem; /* İç section'lar arasına boşluk */
    padding: 2.5rem; /* Dış card padding'i */
    border-radius: var(--radius-xl); /* Dış kart köşeleri daha yumuşak */
    background: rgba(255, 255, 255, 0.4); /* Hafif beyaz arka plan */
    border: 1px solid rgba(0, 64, 123, 0.1); /* Hafif sınır */
    box-shadow: var(--shadow-xl); /* Daha belirgin gölge */
    transition: all 0.3s ease;
    width: 100%;
    margin-bottom: 0;
}
.single-program-container:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15); /* Hafifçe yukarı kaldır */
}

/* Tekil program içindeki section'ların arka planını temizle, dış kartın arka planını kullan */
.single-program-container .section {
    padding: 0; /* İç section padding'ini kaldır */
    background: transparent; /* Arka planı temizle */
    backdrop-filter: none;
    border: none;
    box-shadow: none;
    transition: none;
    border-radius: var(--radius-lg);
}

/* Tekil programdaki her bir iç section'a hafif bir kart görünümü ver */
/* Department ve Course Codes section'ları: Daha belirgin bir iç kart */
.single-program-container .department-selection-section,
.single-program-container .course-codes-section {
    padding: 1.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
}

/* Collapsible (Şube ve Saat) alanlar için hafif bir renk ve sınır */
.single-program-container .section:not(.department-selection-section):not(.course-codes-section) {
    padding: 1rem 1.5rem;
    background: rgba(0, 115, 183, 0.05); /* Secondary rengin hafif tonu */
    border: 1px solid rgba(0, 115, 183, 0.1);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}
.single-program-container .section:not(.department-selection-section):not(.course-codes-section):hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.single-program-container .section::before {
    display: none; /* Genel section hover efekti bu iç kartlarda olmasın */
}

/* Section H2 başlıklarını ortak programa benzer şekilde düzenle */
.single-program-container .section h2 {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}

/* Collapsible başlıkların içindeki H2'nin alt çizgisi olmasın */
.single-program-container .collapsible-header {
    border-bottom: none !important;
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    font-size: 1.375rem;
    color: var(--primary); /* Başlığı daha belirgin yap */
}

/* Collapsible içeriği açıldığında alt boşluğu ayarlama */
.single-program-container .collapsible-content {
    padding-top: 1rem; /* İçerik açılınca üstten boşluk bırak */
}


/* ORTAK PROGRAM İKİ SÜTUNLU DÜZEN */
.joint-program-container {
    display: grid;
    /* İki eşit genişlikte sütun ve ortada bir boşluk */
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    width: 100%;
    /* Altındaki Saat Aralığı section'ı ile aynı hizada başlar */
    margin-bottom: 0; /* Content'in gap'i ile ayrılacak */
}

/* Kişi Sütunları için Kart Stili */
.person-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem; /* Sütun içindeki section'lar arasına boşluk azaltıldı */
    padding: 1.5rem; /* Sütun içine ek padding */
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.4); /* Hafif beyaz arka plan */
    border: 1px solid rgba(0, 64, 123, 0.1); /* Hafif sınır */
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.person-column:hover {
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.15); /* Hafifçe yukarı kaldır */
}

/* Kişi 1 ve Kişi 2'ye Özel Vurgular */
.person-1-column {
    border-left: 5px solid var(--secondary); /* Vurgu rengi 1 (Açık Mavi) */
}

.person-2-column {
    border-left: 5px solid var(--accent); /* Vurgu rengi 2 (Altın Sarısı) */
}

/* Ana Kişi Başlıkları (Kişi 1 - Ders Kodları) */
.person-column .person-title {
    display: block !important; /* Başlığı her zaman göster */
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
    /* Başlık rengini sütun rengine göre ayarla */
}
.person-1-column .person-title { color: var(--secondary); }
.person-2-column .person-title { color: var(--accent); }

/* İç section'ların arka planını temizle, kartın arka planını kullan */
.person-column .section {
    padding: 0; /* İç section padding'ini kaldır */
    background: transparent;
    backdrop-filter: none;
    border: none;
    box-shadow: none;
    transition: none;
}
.person-column .section:hover {
    box-shadow: none;
    transform: none;
}
.person-column .section::before {
    display: none; /* Section'ın üst çizgisini kaldır */
}

/* İç section H2 başlıklarını temizle ve küçült */
.person-column .section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}


.joint-chips-container {
    /* Ders kodu kutucuklarının dikeyde kaymasını önlemek için min-height kaldırıldı */
    min-height: auto !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.section:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.section:hover::before {
    opacity: 1;
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    word-wrap: break-word;
    hyphens: auto;
    line-height: 1.3;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.925rem;
    word-wrap: break-word;
    hyphens: auto;
}

input[type="text"],
input[type="time"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.925rem;
    background: var(--bg-input);
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    outline: none;
    -webkit-appearance: none; /* Safari için varsayılan stili kaldırma */
    -moz-appearance: none; /* Firefox için varsayılan stili kaldırma */
    appearance: none;
}

select {
    padding-right: 2.5rem; /* Ok için yer açma */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2364748b'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.5em 1.5em;
}


input[type="text"]:focus,
input[type="time"]:focus,
input[type="file"]:focus,
select:focus,
textarea:focus {
    border-color: var(--border-focus);
    /* Primary rengi ile uyumlu gölge */
    box-shadow: 0 0 0 4px rgba(0, 64, 123, 0.1);
    transform: translateY(-1px);
}

input[type="text"]:hover,
input[type="time"]:hover,
select:hover,
textarea:hover {
    border-color: var(--text-muted);
}

.course-input {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: center;
}

.course-input input {
    flex: 1;
}

.course-input-manual {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    align-items: flex-start; /* Otomatik tamamlama listesi için hizalama */
    margin-top: 1rem;
}

.course-input-manual input {
    flex: 1;
}

/* Otomatik Tamamlama Stilleri */
.autocomplete-container {
    position: relative;
    /* max-width: 250px; Yorum satırına alındı, mobil görünümde tam genişliği korumak için */
    flex: 1 1 200px; /* Input'un küçülmesini sağlamak için */
    /* z-index: 20; Datalist kullanıldığında bu gereksiz olabilir ancak tutulabilir */
}

.short-input {
    width: 100% !important;
    min-width: 150px; /* Çok küçülmesini engellemek için */
}

/* ESKİ Öneri listesinin stili tamamen kaldırıldı, datalist görünümü tarayıcıya bırakıldı. */
/* .suggestions-list {} */
/* .suggestion-item {} */


.btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.925rem;
    font-weight: 500;
    font-family: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    outline: none;
    text-transform: none;
    letter-spacing: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    white-space: nowrap;
    min-width: fit-content;
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    /* Primary ve primary-dark renkleri kullan */
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    /* Secondary rengini kullan (Canlı mavi) */
    background: linear-gradient(135deg, var(--secondary) 0%, #005F99 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-small {
    padding: 0.5rem;
    width: 40px;
    height: 40px;
    font-size: 1rem;
}

.btn-small.btn-secondary {
    width: auto;
    padding: 0.5rem 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0; /* Input küçülürken butonun sabit kalması için */
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.time-range {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.results {
    margin-top: 2rem;
}

/* Boş Gün Filtresi Stilleri */
.free-day-filter-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.5);
    align-items: center;
    overflow-x: auto; /* Mobil için kaydırma */
    white-space: nowrap;
}

.filter-title {
    font-weight: 600;
    color: var(--primary);
    font-size: 1rem;
    margin-right: 0.5rem;
    flex-shrink: 0;
}

.filter-button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: fit-content;
    flex-shrink: 0;
    font-size: 0.925rem;
}

.filter-button:hover:not(.active) {
    background: var(--bg-secondary);
    border-color: var(--secondary);
    color: var(--secondary);
    transform: translateY(-1px);
}

.filter-button.active {
    background: var(--secondary); /* Vurgu rengi kullanıldı */
    color: white;
    border-color: var(--secondary);
    font-weight: 700;
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}
/* Boş Gün Filtresi Stilleri SONU */


/* Sayfalama Kontrolleri Stilleri */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.5);
    /* Mobile'da yatay taşmayı önlemek için sığdır */
    overflow-x: auto;
    white-space: nowrap;
}

.page-button {
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 40px;
    text-align: center;
    flex-shrink: 0; /* Sayfalama butonlarının küçülmesini engelle */
}

.page-button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    font-weight: 700;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.page-button:hover:not(.active):not(:disabled) {
    background: var(--bg-secondary);
    color: var(--primary);
    border-color: var(--primary);
}

.page-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}
/* Sayfalama Stilleri Sonu */

#department-select {
    /* Input'un kendisinin maksimum genişliğini sınırlayarak taşan listenin boyutunu dolaylı olarak sınırlarız. */
    width: 100%;}

.schedule-card {
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl); /* Kart köşeleri daha da yumuşatıldı */
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.schedule-card-footer {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    width: 100%;
}

.schedule-card-footer .btn-primary {
    width: auto;
    max-width: 100%;
}

.schedule-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.schedule-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.schedule-card h3 {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    word-wrap: break-word;
    hyphens: auto;
    line-height: 1.3;
}

.schedule-card h4 {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 1.5rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-secondary);
}

/* Ders Bilgileri Footer Grubu (Ortak ve Online Dersler) */
.course-info-footer {
    display: flex;
    flex-wrap: wrap; /* Küçük ekranlarda alt alta düşmesini sağla */
    gap: 1rem; /* Öğeler arasında boşluk */
    margin-top: 1.5rem; /* Tablodan ayır */
    margin-bottom: 0;
}


.course-item {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 0;
    border-left: 4px solid var(--primary);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;

    flex: 1 1 auto;
    min-width: 200px;
}

.course-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.course-name {
    font-weight: 600;
    min-width: 120px;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.25rem;
    word-wrap: break-word;
    hyphens: auto;
    word-wrap: break-word;
    hyphens: auto;
}

.course-details {
    color: var(--text-secondary);
    font-size: 0.925rem;
    line-height: 1.5;
}

/* ORTAK VE ONLİNE DERSLER */
.course-item.common-course {
    /* Primary rengin saydam tonu */
    background: rgba(0, 64, 123, 0.1);
    color: #002D59;
    border-left-color: var(--primary);
    font-weight: 500;
    margin-top: 0;
}

.course-item.online-courses-list {
    /* Accent rengin saydam tonu */
    background: rgba(242, 201, 76, 0.1);
    color: #9A7726;
    border-left-color: var(--accent);
    margin-top: 0;
    font-weight: 500;
}

.loading {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bg-secondary);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    margin: 0 auto 1.5rem;
}

.spinner-small {
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
    vertical-align: middle;
}

.loading-inline {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    background: var(--bg-secondary);
    border-left: 4px solid var(--text-muted);
}

.error {
    background: rgba(239, 68, 68, 0.1);
    color: #7f1d1d;
    padding: 1.25rem 1.5rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
    border-left: 4px solid var(--danger);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
}

.error-inline {
    background: rgba(239, 68, 68, 0.1);
    color: #7f1d1d;
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--danger);
    font-weight: 500;
    font-size: 0.925rem;
}

.file-status {
    margin-top: 1rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    font-size: 0.925rem;
    font-weight: 500;
}

.file-status.success {
    background: rgba(16, 185, 129, 0.1);
    color: #14532d;
    border-left: 4px solid var(--success);
}

.file-status.error {
    background: rgba(239, 68, 68, 0.1);
    color: #7f1d1d;
    border-left: 4px solid var(--danger);
}

.file-status.loading {
    background: rgba(100, 116, 139, 0.1);
    color: var(--text-secondary);
    border-left: 4px solid var(--text-muted);
}

input[type="file"] {
    background: var(--bg-input);
    cursor: pointer;
    border: 2px dashed var(--border);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

input[type="file"]:hover {
    border-color: var(--primary);
    background: var(--bg-secondary);
}

input[type="file"]::-webkit-file-upload-button {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    margin-right: 1rem;
    font-size: 0.925rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

input[type="file"]::-webkit-file-upload-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.course-code-display {
    font-weight: 600;
    min-width: 120px;
    color: var(--primary);
    font-size: 0.925rem;
    letter-spacing: 0.025em;
}

.preferred-section-input {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.preferred-section-input:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--primary);
}

.section-selection {
    border: 1.5px solid var(--border) !important;
    border-radius: var(--radius-sm) !important;
    padding: 0.625rem 1rem !important;
    font-size: 0.925rem !important;
    flex: 1;
}

.course-chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    min-height: 50px;
    align-items: center;
}

.course-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
}

.course-chip.auto-chip {
    background: rgba(0, 64, 123, 0.15);
    color: var(--primary);
    border: 1px solid var(--primary);
}

.course-chip.manual-chip {
    background: rgba(0, 115, 183, 0.15);
    color: var(--secondary);
    border: 1px solid var(--secondary);
}

.remove-chip-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0 0.25rem;
    margin-right: -0.25rem;
    color: var(--danger);
    transition: color 0.2s ease, transform 0.2s ease;
}

.course-chip.auto-chip .remove-chip-btn {
    color: var(--primary-dark);
}

.course-chip.manual-chip .remove-chip-btn {
    color: var(--secondary);
}

.remove-chip-btn:hover {
    color: var(--danger);
    transform: scale(1.2);
}

.course-input-manual {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    align-items: flex-start;
}

.course-input-manual input {
    flex: 1;
}

.autocomplete-container {
    position: relative;
    flex: 1 1 200px;
}

.short-input {
    width: 100% !important;
    min-width: 150px;
}

#person1-courses, #person2-courses {
    display: flex;
    flex-direction: column;
}


::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-dark), var(--primary));
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    .container {
        border-radius: var(--radius-lg);
    }

    .content {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .header {
        min-height: auto;
        padding: 1rem;
    }

    .section {
        padding: 1.5rem;
    }

    .tabs-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .tab {
        flex: auto;
        min-width: 120px;
        text-align: center;
    }

    /* Tekil program ana konteyneri mobil ayarları */
    .single-program-container {
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: var(--shadow-lg);
    }
    .single-program-container .section h2 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    .single-program-container .department-selection-section,
    .single-program-container .course-codes-section {
        padding: 1rem;
    }
    .single-program-container .section:not(.department-selection-section):not(.course-codes-section) {
        padding: 1rem;
    }
    .single-program-container .collapsible-header {
        font-size: 1.25rem;
    }


    /* Ortak program sütunları alt alta dizilir */
    .joint-program-container {
        grid-template-columns: 1fr; /* Tek sütuna düşür */
        gap: 1.5rem; /* Mobil boşluk */
    }

    /* Gizlenen başlıkları tekrar göster */
    .person-column .person-title {
        display: block !important;
        font-size: 1.25rem;
        margin-top: 0;
    }

    .course-input {
        flex-direction: column;
        gap: 0.75rem;
    }

    .course-input-manual {
        flex-direction: column; /* Mobil cihazda alt alta dizilmesi için */
        gap: 0.75rem;
        align-items: stretch;
    }

    .course-input-manual button {
        width: 100%;
    }

    .time-range {
        grid-template-columns: 1fr;
    }

    .preferred-section-input {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .course-code-display {
        min-width: auto;
    }

    .modal-content {
        width: 95%;
        padding: 1.5rem;
    }

    .close-btn {
        top: 0.5rem;
        right: 0.5rem;
    }

    .autocomplete-container {
        max-width: 100%; /* Mobil cihazlarda tam genişlik */
    }

    /* Mobil cihazlarda filtreyi daha düzgün göstermek için */
    .free-day-filter-container {
        flex-wrap: nowrap; /* Mobil cihazda yatay kaydırma için */
        justify-content: flex-start;
        padding: 0.75rem;
    }

    .filter-button {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }
}

@media (max-width: 480px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .header-logo {
        justify-content: center;
    }

    .header-links {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    .tabs-container {
        flex-direction: column;
    }

    .tab {
        min-width: auto;
        width: 100%;
    }

    /* 480px altındaki mobil cihazlarda ders kodu input'unun tam genişlikte kalmasını sağla */
    .autocomplete-container {
        max-width: 100%;
        width: 100%;
        flex: 1 1 100%;
    }

    .course-input-manual {
        flex-direction: column;
        align-items: stretch;
    }

    .schedule-card-footer .btn-primary {
        width: 100%;
    }
}

*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

@media print {
    .btn, .tabs, input, select, .header-links, .background-radial-gradient, .free-day-filter-container, .pagination-container {
        display: none !important;
    }

    .schedule-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }

    /* Yazdırma sırasında tabloyu yatay yönde tam kullan */
    .schedule-timeline-container {
        overflow-x: visible !important;
        width: 100%;
    }

    .schedule-timeline {
        font-size: 8pt !important;
        width: 100% !important;
        min-width: 600px;
    }
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    visibility: visible;
    opacity: 1;
}

.modal-content {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    padding: 2rem;
    padding-top: 3.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);

    max-width: 600px;
    width: 90%;

    position: relative;
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border: 1px solid rgba(255, 255, 255, 0.5);
    min-width: 300px;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.scrollable-content {
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 1rem;
    word-wrap: break-word;
    hyphens: auto;
}


.close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
    z-index: 10;
}

.close-btn:hover {
    color: var(--danger);
    transform: rotate(90deg);
}

#popup-text-content h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

#popup-text-content ul, #popup-text-content ol {
    margin-left: 1.5rem;
    list-style-position: inside;
}

#popup-text-content li {
    margin-bottom: 0.5rem;
}

.header.header-wrapped {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
    min-height: 100px;
}

.header.header-wrapped .header-logo {
    justify-content: center;
}

.header.header-wrapped .header-links {
    width: 100%;
    justify-content: center;
}

.header {
    transition: all 0.3s ease-in-out;
}

.header-title,
.header-subtitle {
    transition: all 0.3s ease-in-out;
}

.tab {
    transition: all 0.3s ease-in-out;
}

.btn {
    transition: all 0.3s ease-in-out;
}

* {
    box-sizing: border-box;
}

.course-name,
.course-details,
label,
.header-title,
.header-subtitle,
.tab span {
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

.collapsible-header {
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 0;
    cursor: pointer;
    margin-bottom: 1.5rem;

    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;

    border-bottom: none !important;

    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    gap: 0.75rem;

    margin-top: 0;
    line-height: 1.3;
}

.collapsible-header:hover {
    color: var(--text-primary);
    border-color: transparent;
}

.collapsible-header i {
    transition: transform 0.3s ease;
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.collapsible-header.active {
    border-color: transparent;
    color: var(--text-primary);
}

.collapsible-header.active i {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-container .collapsible-header {
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 0;
    cursor: pointer;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-container .collapsible-header:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.faq-container .collapsible-header h5 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    font-family: inherit;
}

.faq-container .collapsible-header i {
    transition: transform 0.3s ease;
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.faq-container .collapsible-header.active {
    border-color: var(--primary);
    color: var(--primary-dark);
}

.faq-container .collapsible-header.active i {
    transform: rotate(180deg);
    color: var(--primary);
}


.collapsible-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    padding-bottom: 0;
}

.collapsible-content.open {
    max-height: 800px;
    padding-bottom: 0;
    transition: max-height 0.5s ease-in;
}

.collapsible-content p {
    margin-bottom: 0;
}

.how-to-steps, .contact-links-container, .faq-container {
    display: grid;
    gap: 1.25rem;
    margin-top: 1rem;
}

.how-to-steps {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.features-list {
    grid-template-columns: 1fr;
}

.info-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.info-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.step-number {
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 32px;
    height: 32px;
    font-size: 1rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.info-card-header h5 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.info-card-icon {
    display: none;
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.4);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.feature-item span {
    font-weight: 500;
    color: var(--text-primary);
}

.feature-icon {
    font-size: 1.25rem;
}

.primary-icon { color: var(--primary); }
.secondary-icon { color: var(--secondary); }
.success-icon { color: var(--success); }
.accent-icon { color: var(--accent); }

.popup-outro-text {
    margin-top: 2rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-secondary);
}

.contact-links-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.contact-icon {
    color: var(--primary);
    font-size: 1.5rem;
}

.contact-text {
    font-weight: 500;
    font-size: 1rem;
    word-break: break-all;
}

.note {
    margin-top: 2rem;
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

.popup-header-icon {
    display: none;
}

.popup-header-title {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.popup-header-plain {
    text-align: center;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

@media (max-width: 480px) {
    .popup-header-icon {
        width: 4rem;
        height: 4rem;
        font-size: 2rem;
    }

    .popup-header-title {
        font-size: 1.5rem;
    }
}


/* ZAMAN ÇİZELGESİ STİLLERİ BAŞLANIÇ */

.schedule-timeline-container {
    overflow-x: auto;
    width: 100%;
    margin-bottom: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.schedule-timeline {
    width: 100%;
    min-width: 550px;
    border-collapse: collapse;
    border-spacing: 0;
    font-size: 0.8rem;
    table-layout: fixed;
}

.schedule-timeline thead th {
    background-color: var(--primary);
    color: var(--bg-card);
    padding: 0.5rem 0.3rem;
    font-weight: 600;
    text-align: center;
    border-right: 1px solid var(--primary-dark);
}
.schedule-timeline thead th:first-child {
    width: 70px;
}
.schedule-timeline thead th:last-child {
    border-right: none;
}

.schedule-timeline tbody td {
    border: 1px solid var(--border);
    padding: 0;
    height: 40px;
    text-align: center;
    vertical-align: middle;
    transition: background-color 0.2s ease;
}

.schedule-timeline tbody tr:nth-child(even) {
    background-color: var(--bg-secondary);
}

.schedule-timeline tbody tr:hover {
    background-color: rgba(0, 64, 123, 0.05);
}

.time-slot-header {
    background-color: var(--bg-secondary);
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.3rem;
    border-right: 2px solid var(--border);
    font-size: 0.75rem;
    text-align: center;
    vertical-align: middle;
    width: 55px;
}

.course-block {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    padding: 0.1rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.1;
    z-index: 1;
    background-color: var(--color-1-alpha);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.course-block[data-color-var] {
    background-color: var(--primary);
    border-color: rgba(0, 0, 0, 0.1);
}

.course-block:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.course-block-title {
    font-size: 0.75rem;
    font-weight: 700;
    margin: 0;
    overflow-wrap: break-word;
    white-space: normal;
    text-align: center;
}

.course-block-details {
    font-size: 0.55rem;
    font-weight: 400;
    margin: 0;
    white-space: nowrap;
}

.course-block.joint-p1-course {
    box-shadow: 0 0 0 2px var(--secondary) inset;
    border: 1px solid var(--secondary);
}

.course-block.joint-p2-course {
    box-shadow: 0 0 0 2px var(--accent) inset;
    border: 1px solid var(--accent);
}

.schedule-timeline tbody td[rowspan] {
    padding: 2px;
}
.schedule-timeline tbody td[rowspan] .course-block {
    margin-top: 0;
}


/* Ortak Programda İki Tabloyu Yan Yana Gösteren Yapı */
.joint-schedules-display {
    display: flex;
    gap: 20px;
    width: 100%;
    overflow-x: auto;
    padding-bottom: 10px;
    flex-wrap: nowrap;
    justify-content: space-between;
}

.person-schedule-timeline {
    flex: 1 1 50%;
    min-width: 450px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-secondary);
}

.person-schedule-timeline h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--primary);
    margin: 0;
    padding-bottom: 5px;
    border-bottom: 2px solid var(--secondary);
}

.person-2-timeline h4 {
    border-bottom-color: var(--accent);
    color: var(--text-primary);
}


.person-schedule-timeline .schedule-timeline-container {
    width: 100%;
    min-width: 400px;
    border: none;
    box-shadow: none;
    margin-bottom: 0;
}

.person-schedule-timeline .schedule-timeline-container .schedule-timeline {
    width: 100%;
    min-width: 400px;
}

/* Mobil Cihazlar İçin Alt Alta Dikey Düzen */
@media (max-width: 900px) {
    .joint-schedules-display {
        /* Mobil cihazlarda tabloyu hala yan yana scrollable yap */
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: flex-start;
    }

    .person-schedule-timeline {
        min-width: 400px;
        flex: 1 0 auto;
    }
}

@media (max-width: 550px) {
    .person-schedule-timeline {
        min-width: 300px; /* En dar mobil görünüm için */
    }
    .person-schedule-timeline h4 {
        font-size: 1rem;
    }
}