:root {
    --primary-color: #384d9c; /* Derin Kurumsal Lacivert */
    --secondary-color: #8fa7e0; /* Yumuşak Vurgu Mavisi */
    --background-color: #eff3f7;
    --card-background: #ffffff;
    --text-color: #343a40;
    --soft-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --input-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    --transition-speed: 0.4s;
    --border-radius: 12px;
}

/* === GENEL DÜZEN VE TİPOGRAFİ === */

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    transition: background-color var(--transition-speed) ease;
}

.content-wrapper {
    opacity: 1;
    transition: opacity 0.8s ease-in;
}

/* -------------------------------------------------------------------------- */
/* === 1. FİNAL SPLASH SCREEN STİLİ (index.html için) === */
/* -------------------------------------------------------------------------- */

/* Arka Plan Animasyonu */
@keyframes background-pulse {
    0% { background: linear-gradient(135deg, #384d9c, #2a3a78); }
    50% { background: linear-gradient(135deg, #4d60b3, #3a4b92); }
    100% { background: linear-gradient(135deg, #384d9c, #2a3a78); }
}

#splashScreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Animasyonlu arka plan */
    animation: background-pulse 10s infinite alternate;
    display: flex;
    flex-direction: column;
    justify-content: center; /* Dikeyde Tam Ortalama */
    align-items: center; /* Yatayda Tam Ortalama */
    z-index: 9999;
    opacity: 1;
    transition: opacity 1.2s ease-out;
    color: white;
    text-align: center;
}

#splashScreen.hidden {
    opacity: 0;
    pointer-events: none;
}

/* 🔥 İKİLİ LOGO GRUBU (Yan yana hizalama) */
.logo-group {
    display: flex;
    align-items: center; /* Logoları dikeyde hizala */
    gap: 30px; /* Logolar arasına boşluk bırak */
    margin-bottom: 30px;
}

/* ANA LOGO STİLİ (Parıltılı Animasyonlu) */
@keyframes sparkle-border {
    0% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.3), 0 0 0px var(--secondary-color); }
    50% { box-shadow: 0 0 35px rgba(255, 255, 255, 0.8), 0 0 15px var(--secondary-color); }
    100% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.3), 0 0 0px var(--secondary-color); }
}

.logo-container {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    border: 4px solid rgba(255, 255, 255, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    animation: sparkle-border 2s infinite alternate;
    transition: transform 0.3s;
}

.logo-container:hover {
    transform: scale(1.05);
}

.school-logo {
    width: 140px;
    height: 140px;
    object-fit: contain;
    border-radius: 50%;
    display: block;
}

/* YENİ GÖRSEL STİLİ (Renkli Kenarlık Animasyonu) */
@keyframes colorful-border {
    0% { border-color: #ff5733; }
    25% { border-color: #33ff57; }
    50% { border-color: #3357ff; }
    75% { border-color: #ff33a1; }
    100% { border-color: #ff5733; }
}

.tal-container {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    border: 4px solid transparent;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    /* Renkli Kenarlık Animasyonu Uygulandı (Colorful-border ana animasyon) */
    animation: colorful-border 6s infinite ease-in-out, sparkle-border 2s infinite alternate;
}

.tal-logo {
    width: 140px;
    height: 140px;
    object-fit: contain;
    border-radius: 50%;
    display: block;
}


/* BAŞLIKLAR, YÜKLEME ÇUBUĞU VE DİĞER STİLLER */
@keyframes fadeIn {
    to { opacity: 1; }
}

.splash-title {
    font-size: 3.0rem;
    font-weight: 800;
    margin-bottom: 5px;
    text-shadow: 0 3px 5px rgba(0, 0, 0, 0.3);
    animation: fadeIn 1.5s ease-out;
}

.splash-subtitle {
    font-size: 1.6rem;
    font-weight: 400;
    opacity: 0.95;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    animation: fadeIn 1.5s 0.5s ease-out backwards;
}

.loading-bar {
    width: 300px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    margin: 50px auto 0;
    overflow: hidden;
    animation: fadeIn 1.5s 1s ease-out backwards;
}

.loading-bar::after {
    content: '';
    display: block;
    height: 100%;
    width: 0%;
    background-color: var(--secondary-color);
    border-radius: 5px;
    animation: load 3s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes load {
    0% { width: 0%; transform: translateX(-100%); }
    50% { width: 100%; transform: translateX(0); }
    100% { width: 100%; transform: translateX(100%); }
}

.developer-credit {
    margin-top: 40px;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 300;
    opacity: 0;
    animation: fadeIn 1s 3.5s forwards;
}

/* -------------------------------------------------------------------------- */
/* === 2. DİĞER SAYFALAR (FORM, ADMIN PANEL, MODAL) STİLLERİ === */
/* -------------------------------------------------------------------------- */

.container {
    background: var(--card-background);
    padding: 45px;
    border-radius: 20px;
    box-shadow: var(--soft-shadow);
    width: 100%;
    max-width: 580px;
}

.admin-container {
    max-width: 400px;
    padding: 30px;
    margin-top: 0;
}

.admin-title {
    color: var(--primary-color);
    font-size: 2rem !important;
    margin-bottom: 5px !important;
}

header h2 {
    color: var(--secondary-color);
    font-size: 1.15rem;
    font-weight: 300;
    margin-bottom: 5px;
    text-align: center;
}

header h1 {
    text-align: center;
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 40px;
    font-size: 2.1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

form label {
    display: block;
    margin-top: 25px;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form select,
form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    box-sizing: border-box;
    font-size: 1rem;
    color: var(--text-color);
    background-color: #fcfcfc;
    box-shadow: var(--input-shadow);
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
}

form input:focus, form select:focus, form textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(56, 77, 156, 0.15);
    outline: none;
    background-color: var(--card-background);
}

form button {
    background-color: var(--primary-color);
    color: white;
    padding: 16px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 700;
    margin-top: 40px;
    box-shadow: 0 8px 20px rgba(56, 77, 156, 0.4);
    transition: background-color var(--transition-speed) ease, transform 0.15s, box-shadow var(--transition-speed) ease;
}

form button:hover {
    background-color: #2c418a;
    box-shadow: 0 12px 30px rgba(56, 77, 156, 0.5);
}

.admin-login-btn {
    position: fixed;
    top: 25px;
    right: 30px;
    background-color: #fff;
    color: var(--primary-color);
    width: 45px;
    height: 45px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    font-size: 1.2rem;
    border: 2px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s, transform 0.2s;
    z-index: 1000;
}

/* -------------------------------------------------------------------------- */
/* === YÖNETİCİ PANELİ STİLİ (admin_panel.html) === */
/* -------------------------------------------------------------------------- */

.admin-panel-container {
    max-width: 1200px;
    margin-top: 5vh;
    margin-bottom: 5vh;
    box-shadow: var(--soft-shadow);
    border-radius: 20px;
    padding: 30px;
    background-color: var(--card-background);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 15px;
}

.logout-btn {
    background-color: #dc3545;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
}

.table-responsive {
    overflow-x: auto;
}

#onerilerTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

#onerilerTable th, #onerilerTable td {
    border: 1px solid #dee2e6;
    padding: 12px;
    text-align: left;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#onerilerTable td:nth-child(6) {
    width: 120px;
    max-width: 150px;
    text-align: center;
    white-space: normal;
}

#onerilerTable th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    position: sticky;
    top: 0;
}

#onerilerTable tbody tr:nth-child(even) {
    background-color: #f8f9fa;
}

.durum-select {
    padding: 6px;
    border-radius: 4px;
    border: 1px solid #ccc;
    font-size: 0.9rem;
}

.delete-btn {
    background-color: #ffc107;
    color: #343a40;
    padding: 8px 12px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background-color 0.3s;
}

.detail-btn {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 8px 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 600;
    transition: background-color 0.3s;
    white-space: nowrap;
}

.detail-btn:hover {
    background-color: #7d96d8;
    color: white;
}

.mesaj {
    text-align: center;
    margin-top: 30px;
    padding: 15px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-speed) ease, transform var(--transition-speed) ease;
}

.mesaj.show {
    opacity: 1;
    transform: scale(1);
}

.success { color: #388e3c; background-color: #e8f5e9; border: 1px solid #a5d6a7; }
.error { color: #d32f2f; background-color: #ffebee; border: 1px solid #ef9a9a; }


/* -------------------------------------------------------------------------- */
/* === MODAL (POPUP) STİLİ === */
/* -------------------------------------------------------------------------- */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow-y: auto;
    background-color: rgba(0,0,0,0.6);
    animation: fadeInModal 0.3s;
}

.modal-content {
    background-color: #fefefe;
    margin: 5% auto;
    padding: 30px;
    border: 1px solid #888;
    width: 90%;
    max-width: 700px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    position: relative;
}

.close-btn {
    color: #aaa;
    float: right;
    font-size: 30px;
    font-weight: bold;
    transition: color 0.3s;
}

.close-btn:hover,
.close-btn:focus {
    color: #dc3545;
    text-decoration: none;
    cursor: pointer;
}

.modal-content h2 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.modal-content p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 10px;
}

.modal-content p strong {
    color: var(--text-color);
    font-weight: 700;
    margin-right: 5px;
}

@keyframes fadeInModal {
    from { opacity: 0; }
    to { opacity: 1; }
}
/* style.css dosyasının en sonuna ekleyin */

.oner-card {
    background-color: #ffffff; /* Beyaz kart */
    border: 1px solid #e0e0e0;
    border-radius: 12px; /* Yumuşak köşeler */
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.oner-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.oner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.oner-tur {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    color: white;
}

/* Türlere özel renkler */
.oner-tur.istek { background-color: #007bff; }
.oner-tur.dilek { background-color: #ffc107; color: #333; } /* Dilek için metin rengini koyu yapalım */
.oner-tur.öneri { background-color: #28a745; }

.oner-konu {
    font-size: 0.85rem;
    color: #6c757d;
    font-weight: 500;
}

.oner-baslik {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-top: 0;
    margin-bottom: 10px;
    border-bottom: 1px dashed #eee;
    padding-bottom: 5px;
}

.oner-aciklama {
    font-size: 1rem;
    color: #333;
    line-height: 1.6;
    margin-bottom: 15px;
}

.oner-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #999;
    padding-top: 10px;
    border-top: 1px solid #f8f9fa;
}