/**
 * ShipGrid Portal - Login Page CSS
 * Version: 1.0.0
 * Server Location: /public_html/portal/assets/css/pages/login.css
 * 
 * Purpose: Login page specific styles
 * Dependencies: main.css (must be loaded first)
 */

/* =====================================================
   LOGIN PAGE LAYOUT
   ===================================================== */

body.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-600) 0%, var(--color-primary-800) 100%);
    position: relative;
    overflow: hidden;
}

/* =====================================================
   ANIMATED BACKGROUND
   ===================================================== */

.bg-shape {
    position: absolute;
    opacity: 0.1;
}

.bg-shape-1 {
    width: 400px;
    height: 400px;
    background: var(--color-primary-400);
    border-radius: 50%;
    top: -200px;
    right: -100px;
    animation: float 20s infinite ease-in-out;
}

.bg-shape-2 {
    width: 300px;
    height: 300px;
    background: var(--color-secondary-400);
    border-radius: 50%;
    bottom: -150px;
    left: -100px;
    animation: float 25s infinite ease-in-out reverse;
}

.bg-shape-3 {
    width: 250px;
    height: 250px;
    background: var(--color-primary-300);
    border-radius: 50%;
    top: 50%;
    left: 10%;
    animation: float 30s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    33% {
        transform: translateY(-30px) rotate(120deg);
    }
    66% {
        transform: translateY(30px) rotate(240deg);
    }
}

/* =====================================================
   LOGIN CONTAINER
   ===================================================== */

.login-container {
    width: 100%;
    max-width: 480px;
    padding: var(--spacing-6);
    z-index: 10;
    position: relative;
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    animation: slideInUp 0.5s ease-out;
}

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

/* =====================================================
   LOGIN HEADER
   ===================================================== */

.login-header {
    background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-700) 100%);
    padding: var(--spacing-6) var(--spacing-4);
    text-align: center;
    color: white;
}

.login-logo {
    width: 100%;
    max-width: 280px;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

.login-logo img {
    width: 100%;
    height: auto;
    object-fit: contain;
}


/* =====================================================
   LOGIN FORM
   ===================================================== */

.login-body {
    padding: var(--spacing-8);
}

.input-icon {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-tertiary);
    pointer-events: none;
    transition: color var(--transition-fast) var(--transition-easing-standard);
}

.input-with-icon {
    padding-left: var(--spacing-12) !important;
}

.input-group:focus-within .input-icon {
    color: var(--color-primary-500);
}

.password-toggle {
    position: absolute;
    right: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-tertiary);
    cursor: pointer;
    padding: var(--spacing-2);
    transition: color var(--transition-fast) var(--transition-easing-standard);
}

.password-toggle:hover {
    color: var(--color-text-secondary);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
}

.login-button {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    position: relative;
    overflow: hidden;
}

.login-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.login-button:active::before {
    width: 300px;
    height: 300px;
}

/* =====================================================
   LOGIN FOOTER
   ===================================================== */

.login-footer {
    padding: var(--spacing-6);
    background: var(--color-gray-50);
    text-align: center;
    border-top: 1px solid var(--color-divider);
}

/* =====================================================
   TEST CREDENTIALS (Development Only)
   ===================================================== */

.test-credentials {
    margin-top: var(--spacing-6);
    padding: var(--spacing-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-md);
    border: 1px dashed var(--color-gray-300);
    text-align: left;
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.test-credentials-title {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2);
    text-align: center;
}

.test-credentials-list {
    line-height: 1.8;
}

.test-role {
    font-weight: var(--font-weight-medium);
    color: var(--color-primary-600);
}

[data-theme="dark"] .test-credentials {
    background: var(--color-gray-800);
    border-color: var(--color-gray-600);
}

[data-theme="dark"] .test-credentials-title {
    color: var(--color-gray-300);
}

[data-theme="dark"] .test-role {
    color: var(--color-primary-400);
}

/* =====================================================
   DIVIDER
   ===================================================== */

.divider {
    display: flex;
    align-items: center;
    margin: var(--spacing-6) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-divider);
}

.divider span {
    padding: 0 var(--spacing-4);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

/* =====================================================
   SOCIAL LOGIN
   ===================================================== */

.social-login {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.social-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3);
    border: 1px solid var(--color-divider);
    border-radius: var(--radius-base);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast) var(--transition-easing-standard);
    cursor: pointer;
    text-decoration: none;
}

.social-button:hover {
    border-color: var(--color-primary-500);
    box-shadow: var(--shadow-sm);
}

/* =====================================================
   LOADING OVERLAY
   ===================================================== */

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xl);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast) var(--transition-easing-standard);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* =====================================================
   ANIMATIONS
   ===================================================== */

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

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

/* =====================================================
   MOBILE RESPONSIVENESS
   ===================================================== */

@media (max-width: 480px) {
    .login-container {
        padding: var(--spacing-4);
    }
    
    .login-body {
        padding: var(--spacing-6);
    }
    
    .social-login {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   DARK THEME
   ===================================================== */

[data-theme="dark"] body.login-page {
    background: linear-gradient(135deg, var(--color-gray-900) 0%, var(--color-gray-950) 100%);
}

[data-theme="dark"] .login-header {
    background: linear-gradient(135deg, var(--color-gray-800) 0%, var(--color-gray-900) 100%);
}

[data-theme="dark"] .login-footer {
    background: var(--color-gray-800);
}

[data-theme="dark"] .loading-overlay {
    background: rgba(0, 0, 0, 0.9);
}