/**
 * KITEAI Theme Styles
 * Bootstrap 5.3.0 Custom Theme
 * 
 * This file contains all custom theme styles for KITEAI.
 * It follows Bootstrap's best practices and avoids !important usage.
 */

/* ============================================
   CSS Custom Properties (Variables)
   ============================================ */
:root {
    --kiteai-primary: #0074c8;
    --kiteai-primary-hover: #0064ac;
    --kiteai-secondary: #425363;
    --kiteai-dark-bg: #222;
    --kiteai-light-gray: #eee;
    --kiteai-text-color: #425363;
    --kiteai-border-color: #e6e8ec;
    --kiteai-success-color: #00d924;
    --kiteai-error-color: #df1b41;
    --kiteai-warning-color: #f5a623;
    --kiteai-body-bg: #fafbfc;
    --kiteai-border-radius: 8px;
    --kiteai-border-radius-lg: 12px;
    --kiteai-box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --kiteai-box-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.1);
    --kiteai-transition: all 0.2s ease;
}

/* ============================================
   Base Styles
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: var(--kiteai-text-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--kiteai-body-bg);
}

/* ============================================
   Navigation
   ============================================ */
.navbar-kiteai {
    background-color: white;
    border-bottom: 1px solid var(--kiteai-border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand-kiteai {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--kiteai-primary);
}

.navbar-brand-kiteai:hover {
    color: var(--kiteai-primary-hover);
}

.nav-link-kiteai {
    color: var(--kiteai-text-color);
    font-weight: 500;
    margin: 0 0.375rem;
    transition: var(--kiteai-transition);
    position: relative;
    padding-bottom: 0.5rem;
}

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

.nav-link-kiteai.active {
    color: var(--kiteai-primary);
    font-weight: 600;
}

.nav-link-kiteai.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 3px;
    background-color: var(--kiteai-primary);
    border-radius: 2px;
}

/* Dropdown Menu Positioning */
.navbar .dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    left: auto;
    z-index: 1050;
    margin-top: 0.5rem;
}

.navbar .dropdown {
    position: relative;
}

/* ============================================
   Buttons
   ============================================ */
.btn-kiteai {
    font-weight: 500;
    border-radius: var(--kiteai-border-radius);
    padding: 0.75rem 1.5rem;
    border: none;
    transition: var(--kiteai-transition);
    text-decoration: none;
    display: inline-block;
}

.btn-kiteai-primary {
    background-color: var(--kiteai-primary);
    color: white;
}

.btn-kiteai-primary:hover {
    background-color: var(--kiteai-primary-hover);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 116, 200, 0.3);
}

.btn-kiteai-outline-primary {
    border: 2px solid var(--kiteai-primary);
    color: var(--kiteai-primary);
    background-color: transparent;
}

.btn-kiteai-outline-primary:hover {
    background-color: var(--kiteai-primary);
    color: white;
}

.btn-kiteai-outline-success {
    border: 2px solid var(--kiteai-success-color);
    color: var(--kiteai-success-color);
    background-color: transparent;
}

.btn-kiteai-outline-success:hover {
    background-color: var(--kiteai-success-color);
    color: white;
    border-color: var(--kiteai-success-color);
}

.btn-kiteai-outline-warning {
    border: 2px solid var(--kiteai-warning-color);
    color: var(--kiteai-warning-color);
    background-color: transparent;
}

.btn-kiteai-outline-warning:hover {
    background-color: var(--kiteai-warning-color);
    color: white;
    border-color: var(--kiteai-warning-color);
}

.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.875rem 1rem;
    margin-bottom: 0.75rem;
    border: 2px solid var(--kiteai-border-color);
    background-color: white;
    color: var(--kiteai-text-color);
    border-radius: var(--kiteai-border-radius);
    transition: var(--kiteai-transition);
    text-decoration: none;
}

.btn-social:hover {
    border-color: var(--kiteai-primary);
    color: var(--kiteai-primary);
    transform: translateY(-1px);
    box-shadow: var(--kiteai-box-shadow-hover);
}

/* ============================================
   Cards
   ============================================ */
.card-kiteai {
    border: 1px solid var(--kiteai-border-color);
    border-radius: var(--kiteai-border-radius-lg);
    box-shadow: var(--kiteai-box-shadow);
    transition: var(--kiteai-transition);
}

.card-kiteai:hover {
    box-shadow: var(--kiteai-box-shadow-hover);
    transform: translateY(-2px);
}

.card-header-kiteai {
    background-color: white;
    border-bottom: 1px solid var(--kiteai-border-color);
    padding: 1.5rem;
    border-radius: var(--kiteai-border-radius-lg) var(--kiteai-border-radius-lg) 0 0;
}

.card-body-kiteai {
    padding: 1.5rem;
}

/* ============================================
   Forms
   ============================================ */
.form-control-kiteai {
    border: 2px solid var(--kiteai-border-color);
    border-radius: var(--kiteai-border-radius);
    padding: 0.875rem 1rem;
    font-size: 1rem;
    transition: var(--kiteai-transition);
}

.form-control-kiteai:focus {
    border-color: var(--kiteai-primary);
    box-shadow: 0 0 0 3px rgba(0, 116, 200, 0.1);
    outline: 0;
}

.form-label-kiteai {
    font-weight: 500;
    color: var(--kiteai-text-color);
    margin-bottom: 0.5rem;
}

/* ============================================
   Alerts
   ============================================ */
.alert-kiteai {
    border-radius: var(--kiteai-border-radius);
    border: none;
    padding: 1rem 1.25rem;
}

.alert-kiteai-success {
    background-color: rgba(0, 217, 36, 0.1);
    color: var(--kiteai-success-color);
}

.alert-kiteai-danger {
    background-color: rgba(223, 27, 65, 0.1);
    color: var(--kiteai-error-color);
}

/* ============================================
   Footer
   ============================================ */
.footer-kiteai {
    background-color: var(--kiteai-dark-bg);
    color: var(--kiteai-light-gray);
    padding: 2rem 0 1.5rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

.footer-kiteai a {
    color: var(--kiteai-light-gray);
    text-decoration: none;
    transition: var(--kiteai-transition);
}

.footer-kiteai a:hover {
    color: white;
}

.footer-kiteai a[href*="claude.ai"]:hover {
    color: #FF7F50; /* Claude's coral/orange color */
}

.ai-links {
    display: flex;
    align-items: center;
    margin-top: 1rem;
}

.ai-links a {
    display: inline-flex;
    align-items: center;
    transition: transform 0.2s ease;
}

.ai-links a:hover {
    transform: scale(1.2);
}

.ai-links svg {
    width: 28px;
    height: 28px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, var(--kiteai-primary) 100%);
    color: white;
    padding: 0.75rem 0;
    text-align: center;
    min-height: 180px;
    display: flex;
    align-items: center;
}

.hero-section h1 {
    font-size: 3rem;
}

.hero-section .lead {
    font-size: 0.9375rem;
}

.hero-section .btn-lg {
    padding: 0.375rem 1rem;
    font-size: 1rem;
}

/* ============================================
   Service Card
   ============================================ */
.service-card {
    text-align: center;
    padding: 2rem;
    height: 100%;
}

.service-card .icon {
    font-size: 3rem;
    color: var(--kiteai-primary);
    margin-bottom: 1rem;
}

/* ============================================
   Utilities
   ============================================ */
.divider {
    border: 0;
    height: 1px;
    background: var(--kiteai-border-color);
    margin: 2rem 0;
}

.social-login-section {
    border-bottom: 1px solid var(--kiteai-border-color);
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
}

.login-divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--kiteai-border-color);
}

.login-divider span {
    background: white;
    padding: 0 1rem;
    color: #8b9cad;
    font-size: 0.875rem;
}

/* ============================================
   Mobile Responsive Styles
   ============================================ */
@media (max-width: 991.98px) {
    .navbar-collapse {
        position: absolute;
        top: 70%;
        right: 0;
        left: auto;
        background-color: white;
        border: 1px solid var(--kiteai-border-color);
        border-radius: var(--kiteai-border-radius);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        margin-top: -2px;
        padding: 0.75rem;
        z-index: 1050;
        width: 160px;
    }
    
    .navbar-collapse.show {
        display: block;
    }
}

@media (max-width: 768px) {
    .hero-section {
        padding: 0.5rem 0;
        min-height: 150px;
    }
    
    .hero-section h1 {
        font-size: 1.5rem;
    }
    
    .hero-section .lead {
        font-size: 0.75rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    /* Mobile navbar adjustments */
    .navbar-brand-kiteai {
        font-size: 1.25rem;
        margin-right: 0.25rem;
    }
    
    .nav-link-kiteai {
        font-size: 1em;
        padding: 0.25rem 0.25rem;
    }
    
    .d-lg-none > .navbar-nav .nav-link {
        font-size: 1.26rem;
        padding: 0.25rem 0.75rem;
    }
    
    .dropdown-menu-end {
        right: 0;
        left: auto;
    }
    
    /* Ultra compact mobile nav */
    .d-lg-none .navbar-nav {
        gap: 0;
        padding-left: 10px;
    }
    
    .d-lg-none > .navbar-nav .nav-link {
        font-size: 1.26rem;
        padding: 0.25rem 0.5rem;
        line-height: 0.9;
        margin: 0;
    }
    
    /* Dropdown nav items styling */
    .d-lg-none .navbar-collapse .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
        line-height: 1.4;
        margin: 0.1rem 0;
        border-radius: 4px;
        transition: background-color 0.2s ease;
    }
    
    .d-lg-none .navbar-collapse .nav-link:hover {
        background-color: var(--kiteai-light-gray);
    }
    
    .d-lg-none .navbar-collapse .nav-link.active {
        background-color: var(--kiteai-primary);
        color: white;
        position: relative;
    }
    
    /* Full width underline for mobile dropdown */
    .navbar-collapse .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 3px;
        background-color: white;
        border-radius: 0;
        transform: none;
    }
    
    .d-lg-none .nav-item {
        margin-right: 0;
    }
    
    .d-lg-none .dropdown-toggle .small {
        font-size: 1.26rem;
    }
    
    /* Compact navbar layout */
    .navbar .container-fluid {
        display: flex;
        flex-wrap: nowrap;
        align-items: center;
        justify-content: space-between;
        padding-left: 0.25rem;
        padding-right: 0.25rem;
    }
    
    .navbar-toggler {
        flex-shrink: 0;
    }
}

@media (max-width: 390px) {
    .d-lg-none > .navbar-nav .nav-link {
        font-size: 1.0rem;
    }
}

/* ============================================
   Animation Keyframes
   ============================================ */
@keyframes countdown {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   Messages Overlay
   ============================================ */
.messages-overlay {
    position: fixed;
    top: 80px;
    left: 20px;
    z-index: 9999;
    width: 450px;
    max-width: 90vw;
    pointer-events: none;
}

.overlay-message {
    pointer-events: auto;
    margin-bottom: 12px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
    border: none;
    border-radius: var(--kiteai-border-radius);
    animation: slideInLeft 0.3s ease-out;
    font-size: 1.25rem;
    font-weight: bold;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.overlay-message.alert-success {
    background-color: rgba(25, 135, 84, 0.95);
    color: white;
    border-color: rgba(25, 135, 84, 1);
}

.overlay-message.alert-danger {
    background-color: rgba(220, 53, 69, 0.95);
    color: white;
    border-color: rgba(220, 53, 69, 1);
}

.overlay-message.alert-warning {
    background-color: rgba(255, 193, 7, 0.95);
    color: #212529;
    border-color: rgba(255, 193, 7, 1);
}

.overlay-message.alert-info {
    background-color: rgba(13, 202, 240, 0.95);
    color: white;
    border-color: rgba(13, 202, 240, 1);
}

.auto-fade-message {
    border-left: 4px solid rgba(255, 255, 255, 0.8);
}

.auto-fade-message:hover .alert-progress-bar {
    animation-play-state: paused;
}

.alert-progress-bar {
    z-index: 10;
}

.overlay-message.alert-success .alert-progress-bar {
    background-color: rgba(255, 255, 255, 0.5);
}

.overlay-message.alert-danger .alert-progress-bar {
    background-color: rgba(255, 255, 255, 0.5);
}

.overlay-message.alert-warning .alert-progress-bar {
    background-color: rgba(0, 0, 0, 0.3);
}

.overlay-message.alert-info .alert-progress-bar {
    background-color: rgba(255, 255, 255, 0.5);
}

/* Mobile message overlay adjustments */
@media (max-width: 768px) {
    .messages-overlay {
        top: 70px;
        left: 10px;
        right: 10px;
        width: auto;
    }
    
    .overlay-message {
        font-size: 1.1rem;
    }
}

/* ============================================
   SPA Navigation Styles
   ============================================ */
body.spa-loading {
    pointer-events: none;
    opacity: 0.7;
}

#spa-loader {
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--kiteai-border-radius);
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Smooth transitions for content updates */
.container, .main-content, main {
    transition: opacity 0.2s ease-in-out;
}