@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================
   LOGIN PAGE — CampusConnect Unified Design
   ============================================ */
:root {
    --primary: #6C63FF;
    --primary-dark: #5A52D5;
    --primary-light: #8B83FF;
    --primary-glow: rgba(108, 99, 255, 0.35);
    --accent: #FF6B6B;
    --accent-glow: rgba(255, 107, 107, 0.3);
    --bg-deep: #0B0D17;
    --bg-dark: #111327;
    --bg-card: #1A1D35;
    --bg-glass: rgba(26, 29, 53, 0.65);
    --bg-glass-light: rgba(255, 255, 255, 0.04);
    --text-primary: #F0F0F8;
    --text-secondary: #A0A3BD;
    --text-muted: #6B6F8D;
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-active: rgba(108, 99, 255, 0.4);
    --gradient-hero: linear-gradient(135deg, #6C63FF 0%, #B24BF3 50%, #FF6B6B 100%);
    --gradient-btn: linear-gradient(135deg, #6C63FF 0%, #8B83FF 100%);
    --shadow-glow: 0 0 30px var(--primary-glow);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 50px;
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --error-color: #FF6B6B;
    --success-color: #4ECB71;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-deep);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background Ambient Glow */
body::before {
    content: '';
    position: fixed;
    top: -30%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    filter: blur(80px);
    animation: float 8s ease-in-out infinite;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -20%;
    left: -15%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(80px);
    animation: float 10s ease-in-out infinite reverse;
    z-index: 0;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -30px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
}

/* Login Container */
.login-container {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    width: 100%;
    max-width: 440px;
    padding: 44px 40px;
    position: relative;
    z-index: 1;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    animation: cardFadeIn 0.6s var(--ease-smooth);
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Header */
.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    height: 64px;
    margin-bottom: 20px;
    transition: transform 0.4s var(--ease-smooth);
    filter: brightness(1.1);
}

.login-logo:hover {
    transform: scale(1.08);
}

.login-header h1 {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.5;
}

/* Form */
.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.88rem;
    letter-spacing: 0.01em;
}

.login-form input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s var(--ease-smooth);
}

.login-form input::placeholder {
    color: var(--text-muted);
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.15);
    background: rgba(255, 255, 255, 0.03);
}

.forgot-password {
    display: block;
    text-align: right;
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--primary-light);
    text-decoration: none;
    transition: color 0.3s var(--ease-smooth);
}

.forgot-password:hover {
    color: var(--accent);
}

.remember-me {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.remember-me input[type="checkbox"] {
    width: auto;
    margin-right: 10px;
    accent-color: var(--primary);
    cursor: pointer;
}

.remember-me label {
    margin-bottom: 0;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.88rem;
}

/* Login Button */
.login-btn {
    width: 100%;
    padding: 15px;
    background: var(--gradient-btn);
    color: #fff;
    border: none;
    border-radius: var(--radius-full);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.35s var(--ease-smooth);
    margin-top: 8px;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 20px var(--primary-glow);
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.35s var(--ease-smooth);
}

.login-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px var(--primary-glow);
}

.login-btn:hover::before {
    opacity: 1;
}

.login-btn:active {
    transform: translateY(0);
}

/* Divider */
.login-divider {
    display: flex;
    align-items: center;
    margin: 28px 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.login-divider::before,
.login-divider::after {
    content: "";
    flex: 1;
    border-bottom: 1px solid var(--border-glass);
}

.login-divider::before {
    margin-right: 16px;
}

.login-divider::after {
    margin-left: 16px;
}

/* Social Login */
.social-login {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.social-btn {
    flex: 1;
    padding: 12px;
    background: var(--bg-glass-light);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    color: var(--text-secondary);
    font-family: inherit;
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-active);
    transform: translateY(-2px);
    color: var(--text-primary);
}

.social-btn.facebook:hover {
    border-color: #4267B2;
    color: #6B8FD4;
}

.social-btn.google:hover {
    border-color: #DB4437;
    color: #E8766C;
}

/* Register Link */
.register-link {
    text-align: center;
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.register-link a {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 700;
    transition: color 0.3s var(--ease-smooth);
}

.register-link a:hover {
    color: var(--accent);
}

/* Alert Messages */
.alert {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    animation: slideDown 0.4s var(--ease-smooth);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.alert-error {
    background: rgba(255, 107, 107, 0.15);
    color: var(--error-color);
    border-color: rgba(255, 107, 107, 0.25);
}

.alert-success {
    background: rgba(78, 203, 113, 0.15);
    color: var(--success-color);
    border-color: rgba(78, 203, 113, 0.25);
}

/* Responsive */
@media (max-width: 480px) {
    .login-container {
        padding: 32px 24px;
        margin: 16px;
    }

    .login-header h1 {
        font-size: 1.5rem;
    }

    .login-btn {
        font-size: 0.95rem;
    }

    .social-login {
        flex-direction: column;
    }

    .social-btn {
        padding: 12px;
    }
}