/* ==========================================================================
   OCEAN PLANT - Modern Glassmorphism & Vibrant Design System
   ========================================================================== */

:root {
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0369a1 100%);
    --card-bg: rgba(255, 255, 255, 0.07);
    --card-border: rgba(255, 255, 255, 0.15);
    --glass-blur: blur(16px);
    
    --primary: #38bdf8;
    --primary-hover: #0284c7;
    --primary-glow: rgba(56, 189, 248, 0.35);
    --accent: #818cf8;
    --accent-glow: rgba(129, 140, 248, 0.35);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --success: #34d399;
    --error: #f87171;
    --warning: #fbbf24;
    --info: #60a5fa;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    min-height: 100vh;
    background: var(--bg-gradient);
    background-attachment: fixed;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Background Ambient Orbs */
body::before, body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -1;
    pointer-events: none;
}
body::before {
    width: 450px;
    height: 450px;
    background: rgba(56, 189, 248, 0.15);
    top: -100px;
    left: -100px;
}
body::after {
    width: 500px;
    height: 500px;
    background: rgba(129, 140, 248, 0.15);
    bottom: -150px;
    right: -100px;
}

/* Header & Navbar */
.navbar {
    width: 100%;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
}
.nav-brand .brand-badge {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.nav-brand i {
    font-size: 1.5rem;
    color: var(--primary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    list-style: none;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.nav-link:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.35rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
}
.btn-primary {
    background: linear-gradient(135deg, #0284c7, #6366f1);
    color: #ffffff;
    box-shadow: 0 4px 20px var(--primary-glow);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(56, 189, 248, 0.5);
}
.btn-outline {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--card-border);
    color: var(--text-main);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}
.btn-full {
    width: 100%;
}

/* Layout Containers */
.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Glass Card */
.glass-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: 2.5rem;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.card-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-align: center;
    color: var(--text-main);
}
.card-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2rem;
}

/* Messages / Toast Alerts */
.messages-container {
    width: 100%;
    max-width: 440px;
    margin-bottom: 1rem;
}
.alert {
    padding: 0.85rem 1.15rem;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    border: 1px solid transparent;
    animation: slideDown 0.3s ease-out;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}
.alert-success {
    background: rgba(52, 211, 153, 0.15);
    border-color: rgba(52, 211, 153, 0.3);
    color: #6ee7b7;
}
.alert-error {
    background: rgba(248, 113, 113, 0.15);
    border-color: rgba(248, 113, 113, 0.3);
    color: #fca5a5;
}
.alert-info {
    background: rgba(96, 165, 250, 0.15);
    border-color: rgba(96, 165, 250, 0.3);
    color: #93c5fd;
}

/* Form Controls */
.form-group {
    margin-bottom: 1.35rem;
}
.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.form-input {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}
.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(15, 23, 42, 0.8);
}
.form-input::placeholder {
    color: var(--text-dim);
}

.form-footer {
    margin-top: 1.75rem;
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.form-footer a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    margin-left: 0.3rem;
}
.form-footer a:hover {
    text-decoration: underline;
}

/* Hero & Dashboard Section */
.hero-section {
    text-align: center;
    padding: 4rem 1rem;
    max-width: 800px;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}
.hero-title {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 2.5rem;
}
.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

/* Footer */
.footer {
    padding: 2rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: auto;
}