/* Efsanevi Tasarım - CSS */
:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --danger: #ef4444;
    --danger-hover: #dc2828;
    --success: #10b981;
    --bg-dark: #0f172a;
    --text-dark: #f8fafc;
    --text-light: #64748b;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    color: var(--text-dark);
}

/* Koyu Tema Arka Planı ve Hareketli Efektler */
.login-body, .admin-body {
    background: radial-gradient(circle at 10% 20%, rgb(18, 30, 48) 0%, rgb(4, 9, 20) 90%);
}

.background-elements {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    overflow: hidden;
    z-index: -1;
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
}

.circle-1 {
    width: 400px; height: 400px;
    background: #3b82f6;
    top: -100px; left: -100px;
}

.circle-2 {
    width: 600px; height: 600px;
    background: #8b5cf6;
    bottom: -200px; right: -200px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 100px) scale(1.1); }
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 20px;
    z-index: 10;
}

.glass-card {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

/* Glasscard parlaması */
.glass-card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%; height: 100%;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.02), transparent);
    transform: skewX(-20deg);
    animation: shine 8s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    20% { left: 200%; }
    100% { left: 200%; }
}

.scale-in {
    animation: scaleIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes scaleIn {
    0% { opacity: 0; transform: scale(0.95) translateY(20px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.card-header {
    text-align: center;
    margin-bottom: 30px;
}

.card-header .icon {
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 15px;
    display: inline-block;
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.5));
}

.card-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.card-header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #cbd5e1;
}

.input-container {
    position: relative;
}

.input-container i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1.2rem;
    transition: 0.3s;
}

.input-container input {
    width: 100%;
    padding: 14px 16px 14px 45px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
    outline: none;
}

.input-container input:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.input-container input:focus + i, 
.input-container input:not(:placeholder-shown) + i {
    color: var(--primary);
}

.btn {
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(59, 130, 246, 0.7);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    margin-top: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-sm {
    padding: 8px 12px;
    width: auto;
    border-radius: 8px;
    font-size: 1.2rem;
}

.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

/* Upload Area Styles */
.upload-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    text-align: left;
    margin-bottom: 25px;
}

.upload-header h2 { margin-bottom: 4px; font-size: 1.5rem; }

.upload-area {
    border: 2px dashed rgba(255,255,255,0.2);
    border-radius: 16px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.upload-area:hover, .upload-area.dragover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.05);
}

.archive-icon {
    font-size: 3.5rem;
    color: #94a3b8;
    margin-bottom: 15px;
    transition: 0.3s;
}

.upload-area:hover .archive-icon {
    color: var(--primary);
    transform: translateY(-5px);
}

.upload-area h3 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    font-weight: 600;
}

.upload-area p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.file-limits {
    display: inline-block;
    background: rgba(255,255,255,0.1);
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    color: #cbd5e1;
}

.file-input {
    display: none;
}

.file-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    padding: 15px 20px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    animation: scaleIn 0.3s ease forwards;
}

.file-info .file-icon {
    font-size: 1.8rem;
    color: var(--primary);
    margin-right: 15px;
}

.file-info span {
    flex: 1;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.remove-file {
    font-size: 1.5rem;
    color: #94a3b8;
    cursor: pointer;
    transition: 0.2s;
    padding: 5px;
}

.remove-file:hover {
    color: var(--danger);
}

.progress-container {
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.3s ease;
}

.action-footer {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}