/* ========================================
   PMB STAIRAYA - Authentication Pages CSS
   Login & Register Styles
   ======================================== */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animated Background */
@keyframes gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animated-bg {
    background: var(--gradient-rainbow);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.animated-bg-register {
    background: var(--gradient-register);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

/* Floating Particles */
@keyframes float {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg);
        opacity: 0.6;
    }
    50% { 
        transform: translateY(-25px) rotate(180deg);
        opacity: 0.9;
    }
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    animation: float ease-in-out infinite;
    pointer-events: none;
}

.particle:nth-child(1) { width: 80px; height: 80px; top: 10%; left: 10%; animation-duration: 6s; }
.particle:nth-child(2) { width: 60px; height: 60px; top: 20%; right: 15%; animation-duration: 8s; animation-delay: 1s; }
.particle:nth-child(3) { width: 100px; height: 100px; bottom: 20%; left: 20%; animation-duration: 10s; animation-delay: 2s; }
.particle:nth-child(4) { width: 50px; height: 50px; bottom: 15%; right: 20%; animation-duration: 7s; animation-delay: 0.5s; }
.particle:nth-child(5) { width: 70px; height: 70px; top: 50%; left: 5%; animation-duration: 9s; animation-delay: 1.5s; }
.particle:nth-child(6) { width: 90px; height: 90px; top: 30%; right: 10%; animation-duration: 11s; animation-delay: 3s; }

/* Glass Morphism Card */
.glass-card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(30px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    box-shadow: 
        0 8px 32px rgba(31, 38, 135, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
    border-radius: var(--radius-2xl);
    padding: 2.5rem;
}

/* Header Styles */
.logo-text {
    font-size: 3rem;
    font-weight: var(--font-weight-extrabold);
    color: white;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    margin-bottom: 0.75rem;
}

.title-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    margin-bottom: 0.5rem;
}

.subtitle-text {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
}

/* Input Styles */
.input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.input-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 0.625rem;
}

.label-icon {
    width: 1.25rem;
    height: 1.25rem;
    display: inline-block;
    transition: transform var(--transition-base);
}

.input-field {
    width: 100%;
    padding: 0.875rem 1rem;
    background-color: var(--gray-50);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-xl);
    font-size: 15px;
    color: var(--text-primary);
    transition: all var(--transition-base);
    outline: none;
}

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

.input-field:hover:not(:focus) {
    border-color: var(--border-medium);
}

.input-field:focus {
    background-color: var(--bg-primary);
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

.input-field:focus ~ .input-label .label-icon {
    transform: scale(1.1);
}

/* Button Styles */
.btn {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.3px;
    border-radius: var(--radius-xl);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.35);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.25);
}

.btn-secondary-register {
    background: var(--gradient-secondary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-secondary-register::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left var(--transition-slow);
}

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

.btn-secondary-register:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(245, 87, 108, 0.35);
}

.btn-secondary-register:active {
    transform: translateY(0);
    box-shadow: 0 5px 15px rgba(245, 87, 108, 0.25);
}

.btn-outline {
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border: 2px solid var(--border-light);
    font-weight: var(--font-weight-semibold);
}

.btn-outline:hover {
    background-color: var(--gray-50);
    border-color: var(--border-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Checkbox */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    cursor: pointer;
}

.custom-checkbox {
    width: 1.125rem;
    height: 1.125rem;
    border: 2px solid var(--border-medium);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.custom-checkbox:checked {
    background-color: var(--primary-500);
    border-color: var(--primary-500);
}

.custom-checkbox:hover {
    border-color: var(--primary-500);
}

.custom-checkbox:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Link Styles */
.link {
    color: var(--primary-600);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    position: relative;
    transition: color var(--transition-base);
}

.link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: var(--primary-600);
    transition: width var(--transition-base);
}

.link:hover {
    color: var(--primary-700);
}

.link:hover::after {
    width: 100%;
}

.link-register {
    color: var(--secondary-600);
}

.link-register::after {
    background-color: var(--secondary-600);
}

.link-register:hover {
    color: var(--secondary-700);
}

/* Alert Styles */
.alert {
    padding: 1rem;
    border-radius: var(--radius-xl);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background: linear-gradient(to right, var(--success-50), #d1fae5);
    border-left: 4px solid var(--success-600);
    box-shadow: var(--shadow-sm);
}

.alert-error {
    background: linear-gradient(to right, var(--error-50), #fee2e2);
    border-left: 4px solid var(--error-600);
    box-shadow: var(--shadow-sm);
}

.alert-icon {
    width: 1.25rem;
    height: 1.25rem;
    flex-shrink: 0;
}

.alert-text {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
}

/* Divider */
.divider {
    position: relative;
    text-align: center;
    margin: 2rem 0;
}

.divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--border-light), transparent);
}

.divider-text {
    position: relative;
    background: var(--bg-primary);
    padding: 0 1rem;
    color: var(--text-tertiary);
    font-weight: var(--font-weight-medium);
    font-size: 0.8125rem;
    letter-spacing: 0.5px;
}

/* Fade In Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.text-white { color: white; }
.text-white-80 { color: rgba(255, 255, 255, 0.8); }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.pt-1 { padding-top: 0.25rem; }
.gap-2 { gap: 0.5rem; }

/* Responsive Design */
@media (max-width: 640px) {
    .glass-card {
        padding: 1.75rem;
        margin: 0.75rem;
    }
    
    .logo-text {
        font-size: 2.25rem;
    }
    
    .title-text {
        font-size: 1.5rem;
    }
    
    .subtitle-text {
        font-size: 0.875rem;
    }
    
    .input-field {
        font-size: 14px;
        padding: 0.875rem;
    }
    
    .btn {
        padding: 0.875rem;
        font-size: 15px;
    }
}

@media (max-width: 380px) {
    .glass-card {
        padding: 1.5rem;
        margin: 0.5rem;
    }
    
    .logo-text {
        font-size: 1.875rem;
    }
    
    .title-text {
        font-size: 1.25rem;
    }
    
    .input-field,
    .btn {
        font-size: 14px;
    }
}

/* Grid Responsive */
.grid-responsive {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (max-width: 640px) {
    .grid-responsive {
        grid-template-columns: 1fr;
    }
}