/* ─────────────────────────────────────────────────────
   login.css — Premium Dark/Glassmorphism Auth Page
───────────────────────────────────────────────────── */

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

:root {
    --primary: #ef4444;
    --primary-hover: #dc2626;
    --bg-dark: #0f172a;
    --text-white: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top left, var(--primary), #000);
    color: var(--text-white);
    overflow: hidden;
    margin: 0;
}

.login-wrapper {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

/* Card */
.login-card {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: cardIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

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

.login-header h1 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Form */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    outline: none;
    transition: all 0.2s;
    box-sizing: border-box;
    caret-color: var(--primary);
}

.login-form input:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.2);
}

/* Buttons */
.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 12px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 10px;
}

.login-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(239, 68, 68, 0.4);
    background: var(--primary-hover);
}

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

/* Divider */
.divider {
    display: flex;
    align-items: center;
    margin: 24px 0;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

.divider::before, .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 12px;
}

/* Social Buttons */
.btn-social {
    width: 100%;
    padding: 12px;
    background: white;
    color: #1a1a1a;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-social:hover {
    background: #f3f4f6;
}

.btn-social img {
    width: 20px;
}

/* Error Message */
.error-msg {
    display: none;
    color: #fca5a5;
    font-size: 0.85rem;
    margin-top: 20px;
    text-align: center;
    background: rgba(239, 68, 68, 0.15);
    padding: 12px;
    border-radius: 10px;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Footer Links */
.footer-links {
    margin-top: 24px;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links a {
    color: #818cf8;
    text-decoration: none;
    font-weight: 600;
}

.footer-links a:hover {
    text-decoration: underline;
}