/* === GENEL SİTE STİLLERİ === */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --light-color: #f8f9fa;
    --dark-color: #34495e;
    --border-color: #dee2e6;
    --danger-color: #e74c3c;
    --success-color: #2ecc71;
    --body-bg: #f4f7f9;
    --header-height: 70px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', sans-serif;
    margin: 0;
    background-color: var(--body-bg);
    color: var(--dark-color);
    line-height: 1.7;
    overflow-x: hidden; /* Yatay kaydırmayı engelle */
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === HEADER (LOGO İLE GÜNCELLENDİ) === */
.site-header {
    background-color: #fff;
    padding: 0 20px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-content { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { 
    display: inline-block;
    height: 55px; 
}
.logo img {
    height: 100%;
    width: auto;
}
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; z-index: 1001; }
.main-nav { display: flex; }
.main-nav ul { margin: 0; padding: 0; list-style: none; display: flex; align-items: center; gap: 25px; }
.main-nav a { text-decoration: none; color: var(--dark-color); font-weight: 600; transition: color 0.2s; }
.main-nav a:hover { color: var(--primary-color); }
.btn-nav { background-color: var(--primary-color); color: #fff !important; padding: 8px 18px; border-radius: 50px; }
.btn-nav:hover { color: #fff !important; opacity: 0.9; }

.user-welcome {
    color: var(--dark-color);
    font-weight: 600;
}
.main-nav .btn-danger {
    background-color: var(--danger-color);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 50px;
}
.main-nav .btn-danger:hover {
    color: #fff !important;
    opacity: 0.9;
}


/* === HERO SECTION (ANİMASYONLU & ORİJİNAL TASARIM) === */
.hero-section {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color), #2980b9, var(--secondary-color));
    background-size: 400% 400%;
    color: #fff;
    padding: 80px 20px;
    text-align: center;
    animation: gradientAnimation 15s ease infinite;
    position: relative;
    overflow: hidden;
}

@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-section h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}
.hero-section p { 
    font-size: 1.2rem; 
    opacity: 0.9; 
    margin-bottom: 30px; 
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.hero-search-form { 
    display: flex; 
    max-width: 600px; 
    margin: 0 auto; 
    border-radius: 50px; 
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}
.hero-search-form input { 
    flex-grow: 1; 
    min-width: 150px; 
    padding: 15px 25px; 
    border: none; 
    border-radius: 50px 0 0 50px; 
    font-size: 1.1rem; 
    outline: none; 
}
.hero-search-form button {
    padding: 0 30px;
    border: none;
    background: #fff;
    color: var(--primary-color);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 0 50px 50px 0;
    cursor: pointer;
    transition: all 0.3s ease;
}
.hero-search-form button:hover {
    background: var(--light-color);
}


/* === KART VE GRID YAPILARI (ORİJİNAL TASARIM) === */
.content-section { background-color: #fff; padding: 25px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.05); margin-bottom: 25px; }
.section-title { margin-top: 0; font-size: 1.5rem; border-bottom: 1px solid var(--border-color); padding-bottom: 10px; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.section-title i { color: var(--primary-color); opacity: 0.8; }
.section-subtitle { margin: -15px 0 20px 0; color: #7f8c8d; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.song-card {
    background-color: #fff;
    border-radius: 8px;
    text-decoration: none;
    color: var(--dark-color);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 15px;
    gap: 15px;
}
.song-card:hover { transform: translateY(-5px); box-shadow: 0 8px 15px rgba(0,0,0,0.08); }

.card-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.card-image img { width: 100%; height: 100%; object-fit: cover; }
.card-image .placeholder-icon { font-size: 2rem; color: var(--border-color); }
.card-content { padding: 0; }
.card-title { margin: 0 0 5px 0; font-size: 1.1rem; line-height: 1.3; }
.card-subtitle { margin: 0; color: #7f8c8d; }


/* === ORİJİNAL ANA SAYFA GRID YAPISI === */
.home-grid-bottom {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 25px;
    margin-bottom: 25px;
}

/* === Popüler Sanatçılar (Görsel Kartlar - Orijinal) === */
.artist-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 20px;
}
.artist-card-visual {
    text-decoration: none;
    color: var(--dark-color);
    text-align: center;
    transition: transform 0.2s;
}
.artist-card-visual:hover {
    transform: translateY(-5px);
}
.artist-card-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    border: 3px solid #fff;
    background-color: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
}
.artist-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.artist-card-image .placeholder-icon {
    font-size: 3rem;
    color: var(--border-color);
}
.artist-card-name {
    font-weight: 600;
}

/* === Kategoriler (Görsel Butonlar - Orijinal) === */
.category-grid-visual {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.category-button {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: 8px;
    background-color: var(--light-color);
    border: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    transition: all 0.2s;
}
.category-button:hover {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}
.category-button i {
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

/* === AKORLARI ÖĞREN BÖLÜMÜ (Efektli) === */
.learn-chords-section {
    background: var(--secondary-color);
    color: #fff;
}
.learn-chords-section .section-title {
    color: #fff;
    border-bottom-color: rgba(255,255,255,0.2);
}
.learn-chords-section .section-title i {
    color: #fff;
}
.learn-chords-section .section-subtitle {
    color: #bdc3c7;
}
.featured-chords-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}
.flip-card {
    background-color: transparent;
    height: 200px;
    perspective: 1000px;
    cursor: pointer;
}
.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
}
.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    box-sizing: border-box;
}
.flip-card-front {
    background-color: #fff;
    color: var(--dark-color);
}
.flip-card-back {
    background-color: var(--primary-color);
    color: white;
    transform: rotateY(180deg);
}
.flip-card-back h4 { margin: 0 0 5px 0; }
.flip-card-back p { margin: 0 0 10px 0; font-size: 0.9rem; opacity: 0.9; }
.flip-card-back h5 { margin: 0 0 15px 0; font-size: 1rem; }
.btn-small { padding: 6px 14px; background-color: #fff; color: var(--primary-color); }
.chord-diagram { width: 100%; max-width: 120px; }
.chord-diagram text { fill: var(--dark-color); }


/* === ANA İÇERİK VE SAYFA YAPISI === */
main { padding-top: 30px; padding-bottom: 30px; }
.page-container { padding-top: 20px; }

/* === GRID SİSTEMİ (Masaüstü - DİĞER SAYFALAR İÇİN) === */
.repertoire-grid, .song-grid { 
    display: grid; 
    grid-template-columns: 1fr 300px; 
    grid-template-areas: "main sidebar-right";
    gap: 25px; 
}
.song-grid.three-column { 
    grid-template-columns: 250px 1fr 300px; 
    grid-template-areas: "sidebar-left main sidebar-right";
}
.main-column { grid-area: main; }
.sidebar-column { grid-area: sidebar-right; }
.left-sidebar-column { grid-area: sidebar-left; }


/* === LİSTELER (Şarkı, Sanatçı) === */
.song-list.modern .song-list-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    text-decoration: none;
    color: var(--dark-color);
    transition: background-color 0.2s;
    border-radius: 5px;
}
.song-list.modern .song-list-item:last-child { border-bottom: none; }
.song-list.modern .song-list-item:hover { background-color: #f5f7fa; }
.list-item-image {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
}
.list-item-image img { width: 100%; height: 100%; object-fit: cover; }
.list-item-image .placeholder-icon { font-size: 1.5rem; color: var(--border-color); }
.list-item-content { line-height: 1.4; }
.list-item-content .artist { font-weight: 600; font-size: 0.9em; display: block; }
.list-item-content .title { color: #555; display: block; }
.artist-list .artist-list-item { font-weight: 600; }

/* === GİRİŞ VE KAYIT SAYFALARI (YENİ PROFESYONEL TASARIM) === */
.login-page-wrapper {
    width: 100%;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--body-bg);
}

.login-layout {
    width: 100%;
    max-width: 1100px;
    min-height: 650px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    background-color: #fff;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.12);
    overflow: hidden;
}

.login-promo-panel {
    background-image: linear-gradient(rgba(44, 62, 80, 0.85), rgba(52, 152, 219, 0.7)), url('https://images.unsplash.com/photo-1510915361894-db8b60106945?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
}

.promo-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.promo-content p {
    font-size: 1.2rem;
    line-height: 1.6;
    opacity: 0.9;
}

.login-form-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.auth-container {
    width: 100%;
    max-width: 400px;
    background: transparent;
    padding: 0;
    box-shadow: none;
    text-align: center;
}

.auth-container.animated {
    animation: fadeInSlideUp 0.8s ease-out forwards;
}

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

.auth-header .logo-auth { display: inline-block; margin-bottom: 15px; width: 180px; }
.auth-header .logo-auth img { max-width: 100%; height: auto; }
.auth-header p { color: #7f8c8d; margin-bottom: 25px; }
.auth-form { text-align: left; }
.input-group { position: relative; margin-bottom: 20px; }
.input-group i { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: #bdc3c7; }
.input-group input { width: 100%; padding: 12px 12px 12px 45px; border: 1px solid var(--border-color); border-radius: 8px; box-sizing: border-box; transition: all 0.2s; }
.input-group input:focus { border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2); outline: none; }

.form-button-group {
    text-align: center;
    margin-top: 15px;
}

.btn-gradient {
    background: linear-gradient(45deg, var(--primary-color), #5dade2);
    border: none;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4);
    transition: all 0.3s ease;
    padding: 14px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
}
.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(52, 152, 219, 0.6);
}

.auth-footer { margin-top: 25px; color: #7f8c8d; }
.auth-footer a { color: var(--primary-color); text-decoration: none; font-weight: 600; }
.error-message, .success-message { padding: 15px; border-radius: 8px; margin-bottom: 20px; text-align: center; }
.error-message { background-color: #fbeae5; color: var(--danger-color); }
.success-message { background-color: #eaf7f2; color: var(--success-color); }

/* === ŞARKI SAYFASI (song.php) === */
.song-content-area { padding: 25px; }

/* ŞARKI SAYFASI BAŞLIK VE KONTROL STİLLERİ */
.song-main-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 15px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.song-title-artist h1 {
    margin: 0;
    font-size: 2.8rem;
    line-height: 1.1;
    color: var(--secondary-color);
}

.song-title-artist h2 {
    margin: 5px 0 0 0;
    font-size: 1.6rem;
    font-weight: 400;
}

.song-title-artist h2 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

.song-title-artist h2 a:hover {
    color: var(--secondary-color);
}

.song-page-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
    padding-top: 5px; /* Başlıkla hizalamak için */
}

.transpose-control-group {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: var(--light-color);
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.transpose-control-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--dark-color);
    margin-bottom: 0;
}

#transpose-select {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    background-color: #fff;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
}

#transpose-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.song-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    align-items: center;
    margin-bottom: 25px;
}
.song-meta span {
    background-color: #fff;
    padding: 8px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    display: inline-flex;
    align-items: center;
    color: var(--dark-color);
}
.song-meta strong {
    margin-right: 8px;
    color: var(--secondary-color);
    opacity: 0.7;
}

.repertoire-button-container .btn {
    padding: 10px 18px;
}

#song-chords {
    font-family: 'Courier New', Courier, monospace;
    white-space: pre-wrap;
    line-height: 2;
    background-color: var(--light-color);
    padding: 20px;
    border-radius: 5px;
    border: 1px solid var(--border-color);
    font-size: clamp(11px, 2.5vw, 16px);
}
#song-chords b.chord { 
    color: var(--primary-color); 
    font-weight: bold; 
    cursor: pointer;
    position: relative;
    transition: color 0.2s;
}
#song-chords b.chord:hover {
    color: var(--secondary-color);
}


/* === Yüzen Kontrol Paneli (Floating Controls) === */
.song-controls.floating { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); background-color: var(--secondary-color); color: #fff; border-radius: 50px; box-shadow: 0 5px 15px rgba(0,0,0,0.2); display: flex; align-items: center; z-index: 99; transition: all 0.3s ease-in-out; }
.controls-wrapper { display: flex; align-items: center; gap: 15px; transition: all 0.3s; padding: 10px 0 10px 15px; }
.floating .control-group { display: flex; align-items: center; gap: 10px; }
.floating .control-label { font-weight: 600; font-size: 0.9rem; white-space: nowrap; }
.floating .control-buttons { display: flex; align-items: center; background-color: rgba(0,0,0,0.2); border-radius: 30px; }
.floating .btn-control { background: transparent; border: none; color: #fff; cursor: pointer; width: 40px; height: 40px; font-size: 1.1rem; transition: background-color 0.2s; border-radius: 50%; }
.floating .btn-control:hover { background-color: rgba(255,255,255,0.2); }
.floating #transpose-level { font-weight: bold; width: 30px; text-align: center; color: #fff; }
.control-group-toggle { padding: 10px; }
.control-group-toggle .btn-control { background-color: rgba(0,0,0,0.2); }
.song-controls.floating.is-collapsed .controls-wrapper { width: 0; overflow: hidden; opacity: 0; white-space: nowrap; padding: 10px 0; }
.song-controls.floating.is-collapsed { padding-left: 0; padding-right: 0; }

/* === TAM EKRAN MODU (Fullscreen Mode) === */
body.fullscreen-mode .site-header, body.fullscreen-mode .sidebar-column, body.fullscreen-mode .left-sidebar-column, body.fullscreen-mode .site-footer, body.fullscreen-mode .song-main-header, body.fullscreen-mode .song-meta { display: none; }
body.fullscreen-mode { background-color: #000; padding-bottom: 0; }
body.fullscreen-mode .song-content-area { position: fixed; top: 0; left: 0; width: 100%; height: 100%; margin: 0; padding: 20px; box-sizing: border-box; border-radius: 0; box-shadow: none; border: none; background-color: #000; color: #fff; overflow-y: auto; }
body.fullscreen-mode #song-chords { background-color: transparent; border: none; color: #fff; font-size: 1.2rem; height: calc(100% - 40px); }
body.fullscreen-mode #song-chords b.chord { color: #f1c40f; }
body.fullscreen-mode .song-controls.floating { background-color: rgba(20, 20, 20, 0.8); border-top: 1px solid #444; }

/* === AKOR DİYAGRAMI POPOVER === */
.chord-diagram-popover {
    position: absolute;
    background-color: var(--light-color);
    color: var(--dark-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    z-index: 1010;
    width: 170px;
    padding: 12px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.chord-diagram-popover .popover-header {
    font-weight: 600;
    text-align: left;
    margin-bottom: 10px;
    font-size: 1.4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--secondary-color);
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}
.chord-diagram-popover .popover-close {
    cursor: pointer;
    font-size: 1.8rem;
    color: #aaa;
    line-height: 1;
    transition: color 0.2s;
}
.chord-diagram-popover .popover-close:hover {
    color: var(--dark-color);
}
.chord-diagram-popover svg {
    width: 100%;
    height: auto;
}
.chord-diagram-popover svg text {
    font-family: sans-serif;
    font-weight: bold;
    font-size: 14px;
}
.chord-diagram-popover svg .fret-number{
    fill: #7f8c8d;
    font-size: 13px;
}
.chord-diagram-popover svg .string {
    stroke: #ccc;
}
.chord-diagram-popover svg .fret {
    stroke: #aaa;
}
.chord-diagram-popover svg .dot {
    fill: var(--dark-color);
}
.chord-diagram-popover svg .finger-number {
    fill: #fff;
}
.chord-diagram-popover svg .barre {
    fill: var(--dark-color);
    rx: 7;
}
.chord-diagram-popover svg .muted-x {
    fill: #aaa;
    font-size: 16px;
}
.chord-diagram-popover svg .open-circle {
    stroke: #aaa;
    stroke-width: 2;
    fill: none;
}


/* === REPERTUAR SAYFASI (repertoire.php) === */
.repertoire-page-grid { display: grid; grid-template-columns: 1fr 350px; gap: 25px; }
.repertoire-list-container h2, .repertoire-manage-container h2 { font-size: 1.5rem; margin-top: 0; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.repertoire-category-group { margin-bottom: 25px; }
.repertoire-category-header { font-size: 1.2rem; font-weight: 600; margin-bottom: 15px; }
.repertoire-song-list .song-list-item { display: flex; justify-content: space-between; align-items: center; text-decoration: none; color: var(--dark-color); padding: 12px; border-radius: 5px; transition: background-color 0.2s; border: 1px solid var(--border-color); margin-bottom: 8px; }
.repertoire-song-list .song-list-item:hover { background-color: var(--light-color); }
.repertoire-song-list .song-details .artist { font-weight: 600; display: block; font-size: 0.9em; }
.repertoire-song-list .song-details .title { color: #555; }
.repertoire-song-list .remove-from-rep-btn { background: none; border: none; cursor: pointer; color: var(--danger-color); font-size: 1.2rem; padding: 5px; }
#add-category-form { display: flex; gap: 10px; margin-bottom: 20px; }
#add-category-form input { flex-grow: 1; }
.user-category-list .category-item { display: flex; justify-content: space-between; align-items: center; padding: 10px; background-color: var(--light-color); border-radius: 5px; margin-bottom: 8px; }
.user-category-list .delete-cat-btn { background: none; border: none; cursor: pointer; color: var(--danger-color); }
.auth-prompt { text-align: center; padding: 40px; }
.auth-prompt-buttons { margin-top: 20px; display: flex; gap: 15px; justify-content: center; }


/* === MODAL (Pencere) === */
.modal { display: none; position: fixed; z-index: 1001; left: 0; top: 0; width: 100%; height: 100%; overflow: auto; background-color: rgba(0,0,0,0.5); }
.modal-content { background-color: #fff; margin: 10% auto; padding: 30px; border-radius: 8px; max-width: 500px; width: 90%; position: relative; }
.modal-header { display: flex; justify-content: space-between; align-items: center; border-bottom: 1px solid var(--border-color); padding-bottom: 15px; margin-bottom: 20px; }
.modal-header h2 { margin: 0; }
.close-btn { font-size: 1.8rem; font-weight: bold; color: #aaa; cursor: pointer; }
.form-group select, .form-group input { width: 100%; padding: 10px; box-sizing: border-box; }
.form-group label { margin-bottom: 10px; display: block; }
.btn { background-color: var(--primary-color); color: #fff; padding: 10px 20px; border-radius: 5px; border: none; cursor: pointer; text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary { background-color: var(--primary-color); }
.btn-danger { background-color: var(--danger-color); }


/* === SCROLL ANİMASYONU İÇİN SINIFLAR === */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* === FOOTER === */
.site-footer { 
    text-align: left;
    padding: 60px 0 0 0;
    background: var(--secondary-color); 
    color: #bdc3c7; 
    margin-top: 30px; 
    font-size: 0.95rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding-bottom: 40px;
}

.footer-column .footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    margin-bottom: 15px;
}

.footer-column p {
    line-height: 1.8;
    color: #95a5a6;
}

.footer-column .footer-heading {
    font-size: 1.2rem;
    color: #fff;
    margin-top: 0;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}
.footer-column .footer-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

.footer-column.links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column.links li a {
    color: #95a5a6;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 12px;
    transition: all 0.2s ease-in-out;
}
.footer-column.links li a:hover {
    color: #fff;
    transform: translateX(5px);
}

.footer-social-links {
    display: flex;
    gap: 15px;
}

.footer-social-links a {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
    width: 40px;
    height: 40px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.2s ease-in-out;
}

.footer-social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom-bar {
    text-align: center;
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom-bar p {
    margin: 0;
}

/* === MOBİL UYUMLULUK === */
@media (max-width: 1200px) {
    .song-grid.three-column { 
        grid-template-areas: "main sidebar-right";
        grid-template-columns: 1fr 300px;
    }
    .left-sidebar-column { display: none; }
}
@media (max-width: 992px) {
    .repertoire-grid, .song-grid, .song-grid.three-column { 
        grid-template-columns: 1fr; 
        grid-template-areas: "main" "sidebar-left" "sidebar-right";
    }
    .left-sidebar-column { display: block; }
    .header-content { flex-wrap: wrap; }
    .site-header { height: auto; padding-top: 10px; padding-bottom: 10px; }
    
    .home-grid-bottom, .repertoire-page-grid {
        grid-template-columns: 1fr;
    }

    .login-layout {
        grid-template-columns: 1fr;
    }
    .login-promo-panel {
        display: none;
    }
    .login-page-wrapper {
        min-height: auto;
    }

}
@media (max-width: 768px) {
    .hero-section h1 { font-size: 2.2rem; }
    .hero-search-form { flex-direction: column; border-radius: 25px; box-shadow: none; }
    .hero-search-form input { border-radius: 25px; text-align: center; }
    .hero-search-form button { border-radius: 25px; margin-top: 10px; padding: 15px; }

    .menu-toggle { display: block; }
    .main-nav { display: none; position: absolute; top: var(--header-height); left: 0; width: 100%; background-color: #fff; box-shadow: 0 4px 6px rgba(0,0,0,0.1); }
    .main-nav.is-open { display: block; }
    .main-nav ul { flex-direction: column; padding: 10px 0; }
    .main-nav ul li { width: 100%; text-align: center; }
    .main-nav ul a { padding: 15px; display: block; border-bottom: 1px solid var(--light-color); }
    .main-nav .user-welcome { padding: 15px; border-bottom: 1px solid var(--light-color); }
    
    .song-main-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .song-title-artist h1 {
        font-size: 2rem;
    }
    .song-title-artist h2 {
        font-size: 1.3rem;
    }
    .song-page-controls {
        width: 100%;
        justify-content: space-between;
    }

    .container.page-container {
        padding: 0 5px;
    }
    .song-content-area {
        padding: 20px 10px;
    }
    
    .song-meta {
        gap: 8px;
    }
    .song-meta span {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .repertoire-button-container .btn {
        font-size: 0.9rem;
        padding: 8px 15px;
    }
    
    .song-controls.floating { 
        flex-direction: column; 
        width: 90%;
        max-width: 380px;
        border-radius: 15px; 
        bottom: 10px; 
        gap: 5px; 
        padding: 8px; 
    }
    .controls-wrapper {
        flex-direction: column;
        width: 100%;
        gap: 4px;
        padding: 0;
        transition: max-height 0.3s ease-in-out, opacity 0.2s ease-in-out;
        max-height: 500px;
        overflow: hidden;
    }
    .floating .control-group { 
        width: 100%; 
        justify-content: space-between; 
        padding: 2px 0;
    }
    .floating .control-label { 
        display: inline; 
        font-size: 0.85rem;
    }
     .floating .btn-control {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }
    .floating #transpose-level {
        font-size: 1rem;
    }
    .control-group-toggle {
        width: 100%;
        text-align: center;
        padding-top: 4px;
    }
    .control-group-toggle .btn-control {
        background-color: transparent;
        transition: background-color 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    }
    .song-controls.floating.is-collapsed .controls-wrapper {
        max-height: 0;
        opacity: 0;
    }
    .song-controls.floating.is-collapsed {
        background-color: transparent;
        box-shadow: none;
        padding: 0;
        gap: 0;
    }
    .song-controls.floating.is-collapsed .control-group-toggle {
        padding: 0;
    }
    .song-controls.floating.is-collapsed .control-group-toggle .btn-control {
        background-color: var(--secondary-color);
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-column .footer-heading::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .footer-social-links {
        justify-content: center;
    }
}