/* Modern Course Evaluation System - Comprehensive Styling */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700&display=swap');

:root {
    --color-primary: #840404;
    --color-secondary: #6a0303;
    --color-background: #f8f9fa;
    --color-surface: #ffffff;
    --color-text-primary: #333;
    --color-text-secondary: #666;
    --color-accent: #840404;
    --shadow-elevated: 0 10px 30px rgba(0, 0, 0, 0.1);
    --border-radius: 1rem;
}

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

html, body {
    height: 100%;
    font-family: 'Inter', sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header Redesign */
.header-area {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: 1.5rem 1rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-elevated);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    width: 150px;  /* Increased from 100px */
    height: 150px; /* Increased from 100px */
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05) rotate(3deg);
}

h1 {
    display: flex;
    flex-direction: column;
    text-align: center;
}

h1 span:first-child {
    font-size: 2.2rem; /* Increased from 1.8rem */
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.05em;
}

h1 span:last-child {
    font-size: 1.6rem; /* Increased from 1.2rem */
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* Search Box Advanced */
.search-box {
    position: relative;
    margin-bottom: 2rem;
}

#searchInput {
    width: 100%;
    padding: 1rem 1.5rem;
    background-color: var(--color-surface);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
    box-shadow: var(--shadow-elevated);
}

#searchInput:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(132, 4, 4, 0.2);
}

#searchInput::placeholder {
    color: var(--color-text-secondary);
}

/* Course List Innovative Design */
.list-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.list-group-item {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-left: 5px solid var(--color-primary);
    box-shadow: var(--shadow-elevated);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: var(--color-text-primary);
}

.list-group-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, var(--color-primary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    transform: translateX(-100%);
}

.list-group-item:hover::before {
    opacity: 0.1;
    transform: translateX(0);
}

.list-group-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* Modal Advanced Styling */
.modal-content {
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: none;
}

.modal-header {
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    color: white;
    border-top-left-radius: var(--border-radius);
    border-top-right-radius: var(--border-radius);
}

.btn-primary {
    background: var(--color-primary);
    border: none;
    border-radius: calc(var(--border-radius) / 2);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--color-secondary);
    transform: translateY(-3px);
}

.form-control {
    background-color: var(--color-background);
    border: 2px solid var(--color-surface);
    color: var(--color-text-primary);
    border-radius: calc(var(--border-radius) / 2);
}

.form-control:focus {
    background-color: var(--color-surface);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(132, 4, 4, 0.2);
}

/* Footer and Copyright Notice */
.copyright-notice {
    font-size: 0.9rem;
    border-top: 2px solid var(--color-primary);
    margin-top: 2rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 1rem; /* Mobil cihazlarda container padding'ini azalt */
    }

    .header-content {
        flex-direction: column;
        text-align: center;
        align-items: center; /* Merkezlemeyi güçlendir */
    }

    .header-area {
        padding: 1rem; /* Header padding'ini küçült */
        margin-bottom: 1rem;
    }

    .logo {
        width: 100px;  /* Logoları küçült */
        height: 100px;
        margin: 0.5rem 0; /* Logolar arasına boşluk bırak */
    }

    .header-text {
        margin: 1rem 0; /* Başlık için boşluk */
    }

    h1 span:first-child {
        font-size: 1.5rem; /* Küçük ekranlarda başlık boyutunu ayarla */
    }

    h1 span:last-child {
        font-size: 1.2rem;
    }

    .search-box {
        margin-bottom: 1rem;
    }

    #searchInput {
        padding: 0.75rem 1rem; /* Arama kutusunun padding'ini küçült */
        font-size: 0.9rem;
    }

    .list-group {
        grid-template-columns: 1fr; /* Tek sütun düzeni */
        gap: 1rem; /* Kartlar arası boşluğu ayarla */
    }

    .list-group-item {
        padding: 1rem; /* Ders kartı padding'ini ayarla */
        font-size: 0.9rem; /* Yazı boyutunu küçült */
    }

    .modal-dialog {
        margin: 1.75rem 0.5rem; /* Modal genişliğini ayarla */
    }

    .modal-content {
        width: 100%; /* Modal içeriğini tam genişliğe getir */
    }

    .copyright-notice {
        font-size: 0.7rem; /* Footer yazı boyutunu küçült */
        padding: 1rem;
    }
}

/* Çok küçük ekranlar için ekstra ayarlamalar */
@media (max-width: 375px) {
    .logo {
        width: 80px;
        height: 80px;
    }

    h1 span:first-child {
        font-size: 1.3rem;
    }

    h1 span:last-child {
        font-size: 1rem;
    }

    #searchInput {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }

    .list-group-item {
        padding: 0.75rem;
        font-size: 0.8rem;
    }
}

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

.list-group-item {
    animation: fadeInUp 0.5s ease backwards;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: var(--border-radius);
}

/* Modern Academic Header */
.header-area {
    position: relative;
    padding: 1rem 0;
    background-color: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border-left: 1px solid transparent;
    border-right: 1px solid transparent;
    border-image: linear-gradient(
        to bottom,
        transparent,
        var(--color-primary),
        transparent
    ) 1;
 }
 
 /* Header'ın üst ve alt çizgileri */
 .header-area::before,
 .header-area::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent,
        var(--color-primary),
        transparent
    );
 }
 
 .header-area::before {
    top: 0;
 }
 
 .header-area::after {
    bottom: 0;
 }
 
 .header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
    display: grid;
    grid-template-columns: 300px 1fr 300px; /* Logoların alanı genişletildi */
    align-items: center;
    gap: 2rem;
    position: relative;
 }
 
 /* Sosyal Medya Konumu - Sol üst */
 .social-links {
    position: absolute;
    top: -2rem;
    left: 2rem;
    display: flex;
    gap: 1.5rem;
    z-index: 10;
 }
 
 .social-link {
    color: var(--color-primary);
    font-size: 1.2rem;
    transition: transform 0.3s ease;
    text-decoration: none;
 }
 
 .social-link:hover {
    transform: translateY(-2px);
 }
 
 /* Logo Styles */
 .logo {
    width: 180px;
    height: 180px;
    object-fit: contain;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    position: relative;
 }
 
 .logo-left {
    justify-self: start; /* Logo sola yaslandı */
    margin-left: 3rem; /* Sol boşluk artırıldı */
 }
 
 .logo-right {
    justify-self: end; /* Logo sağa yaslandı */
    margin-right: 3rem; /* Sağ boşluk artırıldı */
 }
 
 /* Logo çizgileri */
 .logo-left::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -1.5rem;
    height: 60%;
    width: 1px;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--color-primary),
        transparent
    );
 }
 
 .logo-right::before {
    content: '';
    position: absolute;
    top: 20%;
    left: -1.5rem;
    height: 60%;
    width: 1px;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--color-primary),
        transparent
    );
 }
 
 /* Header Text Area */
 .header-text {
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 0rem; /* Başlık aşağı indirildi */
    padding-bottom: 0rem;
 }
 
 h1 {
    display: flex;
    flex-direction: column;
    gap: 1rem;
 }
 
 h1 span:first-child {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
 }
 
 h1 span:last-child {
    font-size: 1.7rem;
    font-weight: 500;
    color: #333;
 }
 
 /* Integrated Search Box */
 .search-box {
    width: 100%;
    padding: 0.5rem 1rem;
    margin-top: 1.5rem;
 }
 
 #searchInput {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    border: 1px solid rgba(132, 4, 4, 0.05);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
 }
 
 #searchInput:hover {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.95);
 }
 
 #searchInput:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 4px 12px rgba(132, 4, 4, 0.08);
 }
 
 /* Announcement Area */
 .announcement-area {
    max-width: 1400px;
    margin: 1rem auto;
    padding: 0 4rem;
 }
 
 .announcement-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: rgba(132, 4, 4, 0.03);
    border-radius: 8px;
    border-left: 4px solid var(--color-primary);
 }
 
 .announcement-icon {
    color: var(--color-primary);
    font-size: 1.4rem;
 }
 
 .announcement-content p {
    margin: 0;
    color: #333;
    font-weight: 500;
 }
 
 /* Responsive Design */
 @media (max-width: 768px) {
    .header-area {
        padding: 1.5rem 0 1.5rem 0;
    }
 
    .header-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
        padding: 0 1.5rem;
    }
 
    .social-links {
        position: relative;
        top: 0;
        left: 0;
        justify-content: center;
        margin: 1rem 0;
    }
 
    .logo {
        width: 120px;
        height: 120px;
        margin: 0 auto;
    }
 
    .logo-left, .logo-right {
        margin: 0 auto;
    }
 
    .logo-left::after,
    .logo-right::before {
        display: none;
    }
 
    .header-text {
        padding-top: 1rem;
    }
 
    h1 span:first-child {
        font-size: 2rem;
    }
 
    h1 span:last-child {
        font-size: 1.4rem;
    }
 
    .announcement-area {
        padding: 0 1.5rem;
    }
 
    .announcement-content {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
 }