/* public/css/style.css */
:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #06b6d4;
    --bg-deep: #0f172a;
    --bg-indigo: #1e1b4b;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --error: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
    --input-bg: rgba(15, 23, 42, 0.6);
    --sidebar-bg: rgba(15, 23, 42, 0.8);
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --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 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --glass-blur: blur(12px);
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-deep: #ffffff;
    --bg-indigo: #f1f5f9;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --input-bg: #f8fafc;
    --sidebar-bg: #ffffff;
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.05);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-deep);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

[data-theme="light"] .bg-mesh {
    background: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(6, 182, 212, 0.03) 0%, transparent 50%),
        var(--bg-deep);
}

[data-theme="light"] .bg-grid {
    background-image: linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
}

.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, var(--bg-indigo) 0%, var(--bg-deep) 100%);
}

.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: linear-gradient(rgba(148, 163, 184, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at center, black, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, black, transparent 80%);
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: var(--space-md);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInStack 0.8s forwards cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInStack {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.brand-logo {
    text-align: center;
    margin-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.logo-placeholder {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.logo-placeholder svg {
    width: 32px;
    height: 32px;
    color: white;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, var(--text-main), var(--text-muted));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
    transition: transform 0.1s ease-out;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    margin-bottom: var(--space-sm);
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.form-input {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    color: var(--text-main);
    outline: none;
    transition: var(--transition-base);
}

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

.input-icon {
    position: absolute;
    right: 14px;
    color: var(--text-muted);
    cursor: pointer;
}

.strength-meter {
    height: 4px;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    margin-top: 8px;
    display: none;
}

.strength-bar {
    height: 100%;
    width: 0;
    transition: width 0.3s ease;
}

.form-options {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    font-size: 0.875rem;
}

.remember-me {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.forgot-password {
    color: var(--primary);
    text-decoration: none;
}

.btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-md);
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: none;
    margin: 0 auto;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .spinner {
    display: block;
}

.alert {
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    display: none;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
}

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

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

.footer {
    margin-top: var(--space-xl);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer b {
    color: var(--text-main);
}

.footer a {
    color: #facc15;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.footer a:hover {
    color: #fde047;
    text-decoration: underline;
}

.main-layout-footer {
    padding: var(--space-md) var(--space-lg);
    background: var(--card-bg);
    border-top: 1px solid var(--card-border);
    margin-top: auto;
}

.footer {
    text-align: center;
    line-height: 1.6;
}
.form-control {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 9px 12px;
    color: var(--text-main);
    font-size: .875rem;
    font-family: inherit;
    outline: none;
    transition: var(--transition-base);
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,.1);
}