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

:root {
    --navy: #1b263b;
    --navy-light: #243454;
    --gold: #c5a059;
    --gold-hover: #d4b06a;
    --bg: #f0f4f2;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-400: #ced4da;
    --gray-600: #6c757d;
    --text: #2d3748;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.25s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* Main Container */
.login-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

/* Card */
.login-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: visible;
}

.login-card-header {
    text-align: center;
    padding: 36px 32px 0;
}

.login-logo {
    width: 280px;
    display: block;
    margin: 0 auto 20px;
}

.login-card-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 8px;
}

.login-card-header p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* Form */
.login-form {
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text);
    background: var(--gray-100);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--transition);
}

.form-group input::placeholder {
    color: var(--gray-400);
}

.form-group input:focus {
    background: var(--white);
    border-color: var(--navy);
    box-shadow: 0 0 0 4px rgba(27,38,59,0.08);
}

/* Submit Button */
.login-btn {
    width: 100%;
    padding: 14px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    color: var(--white);
    background: var(--navy);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
}

.login-btn:hover {
    background: var(--gold);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

/* Error Message */
.login-error {
    display: none;
    margin-top: 16px;
    padding: 12px 16px;
    font-size: 0.85rem;
    color: #c53030;
    background: #fff5f5;
    border: 1px solid #fed7d7;
    border-radius: var(--radius-sm);
    text-align: center;
}

.login-error.visible {
    display: block;
}

/* Footer */
.login-footer {
    text-align: center;
    padding: 20px;
    font-size: 0.8rem;
    color: var(--gray-600);
}

/* Loading State */
.login-btn.loading {
    position: relative;
    pointer-events: none;
    color: transparent;
}

.login-btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Responsive */
@media (max-width: 480px) {
    .login-logo {
        width: 200px;
    }

    .login-card-header {
        padding: 28px 24px 0;
    }

    .login-form {
        padding: 24px;
    }

    .login-card-header h1 {
        font-size: 1.3rem;
    }
}