/* ===== LOGIN PAGE STYLES ===== */

/* ===== LOGIN CONTAINER ===== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
    padding: var(--space-4);
}

/* ===== BACKGROUND PATTERN ===== */
.background-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 1;
}

.pattern-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    opacity: 0.03;
    animation: float 20s ease-in-out infinite;
}

.pattern-circle-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    right: -150px;
    animation-delay: 0s;
}

.pattern-circle-2 {
    width: 200px;
    height: 200px;
    bottom: -100px;
    left: -100px;
    animation-delay: -5s;
}

.pattern-circle-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: 10%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-20px) rotate(120deg);
    }
    66% {
        transform: translateY(20px) rotate(240deg);
    }
}

/* ===== LOGIN CARD ===== */
.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 2;
    animation: slideInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== LOGO SECTION ===== */
.logo-section {
    text-align: center;
    margin-bottom: var(--space-8);
}

.logo-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    box-shadow: var(--shadow-glow);
    animation: pulse 2s infinite;
}

.logo-icon i {
    font-size: 2.5rem;
    color: white;
}

.logo-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.5;
}

/* ===== LOGIN FORM ===== */
.login-form {
    margin-bottom: var(--space-6);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.form-label i {
    color: var(--primary);
    font-size: var(--font-size-base);
}

.form-input {
    width: 100%;
    padding: var(--space-4);
    background: var(--bg-elevated);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: var(--transition);
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

/* ===== PASSWORD INPUT GROUP ===== */
.password-input-group {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-size: var(--font-size-lg);
}

.password-toggle:hover {
    color: var(--primary);
    background: var(--bg-elevated);
}

/* ===== FORM OPTIONS ===== */
.form-options {
    margin-bottom: var(--space-6);
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    user-select: none;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.checkbox-container input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background: var(--bg-elevated);
}

.checkbox-container input[type="checkbox"]:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-container input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: var(--font-size-xs);
    font-weight: bold;
}

.checkbox-container:hover .checkmark {
    border-color: var(--primary);
}

/* ===== LOGIN BUTTON ===== */
.login-btn {
    width: 100%;
    padding: var(--space-4);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.login-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.login-btn:hover::before {
    left: 100%;
}

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

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* ===== BUTTON READY STATE ===== */
.login-btn.ready {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-light) 100%);
    transform: scale(1.02);
}

/* ===== LOGIN FOOTER ===== */
.login-footer {
    text-align: center;
    padding-top: var(--space-4);
    border-top: 1px solid var(--border);
}

.footer-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.footer-text i {
    color: var(--success);
    font-size: var(--font-size-sm);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .login-container {
        padding: var(--space-2);
    }
    
    .login-card {
        padding: var(--space-6);
        max-width: 100%;
        margin: 0 var(--space-2);
    }
    
    .logo-icon {
        width: 60px;
        height: 60px;
    }
    
    .logo-icon i {
        font-size: 2rem;
    }
    
    .logo-title {
        font-size: var(--font-size-2xl);
    }
    
    .logo-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .form-input {
        padding: var(--space-3);
        font-size: var(--font-size-base);
    }
    
    .login-btn {
        padding: var(--space-3);
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: var(--space-4);
        border-radius: var(--radius-xl);
    }
    
    .logo-section {
        margin-bottom: var(--space-6);
    }
    
    .logo-icon {
        width: 50px;
        height: 50px;
        margin-bottom: var(--space-3);
    }
    
    .logo-icon i {
        font-size: 1.5rem;
    }
    
    .logo-title {
        font-size: var(--font-size-xl);
    }
    
    .logo-subtitle {
        font-size: var(--font-size-xs);
    }
    
    .form-group {
        margin-bottom: var(--space-4);
    }
    
    .form-input {
        padding: var(--space-3);
        font-size: var(--font-size-base);
    }
    
    .form-options {
        margin-bottom: var(--space-5);
    }
    
    .login-btn {
        padding: var(--space-3);
        font-size: var(--font-size-base);
    }
}

/* ===== DARK/LIGHT THEME SUPPORT ===== */
[data-theme="light"] .login-container {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

[data-theme="light"] .pattern-circle {
    opacity: 0.05;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    .login-card,
    .pattern-circle,
    .logo-icon {
        animation: none;
    }
    
    .login-btn::before {
        display: none;
    }
}

/* ===== FOCUS STYLES ===== */
.form-input:focus,
.login-btn:focus,
.password-toggle:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== HOVER EFFECTS ===== */
.form-input:hover {
    border-color: var(--border-focus);
}

.login-btn:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

/* ===== VALIDATION STYLES ===== */
.form-input.error {
    border-color: var(--danger);
    background: var(--danger-bg);
}

.form-input.success {
    border-color: var(--success);
    background: var(--success-bg);
}

.error-message {
    color: var(--danger);
    font-size: var(--font-size-xs);
    margin-top: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.error-message i {
    font-size: var(--font-size-xs);
}