/* ===== RESPONSIVE DESIGN SYSTEM ===== */
/* Breakpoints: Mobile (320px+), Tablet (768px+), Desktop (1024px+) */

/* ===== BASE RESPONSIVE SETTINGS ===== */
* {
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* ===== MOBILE FIRST APPROACH ===== */
/* Base styles for mobile (320px+) */
.container {
    width: 100%;
    padding: 0 1rem;
    margin: 0 auto;
}

/* ===== NAVIGATION RESPONSIVE ===== */
.nav-container {
    position: relative;
    width: 100%;
}

.nav-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.nav-menu.active {
    display: flex;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-menu a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.3), transparent);
    transition: left 0.5s;
}

.nav-menu a:hover::before {
    left: 100%;
}

.nav-menu a:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-2px);
}

.hamburger {
    display: block;
    cursor: pointer;
    z-index: 1001;
    position: relative;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== GRID SYSTEM RESPONSIVE ===== */
.grid-responsive {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

/* ===== CARD SYSTEM RESPONSIVE ===== */
.card-responsive {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.card-responsive:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.2);
    border-color: rgba(212, 175, 55, 0.4);
}

/* ===== BUTTON SYSTEM RESPONSIVE ===== */
.btn-responsive {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    min-height: 44px; /* Touch-friendly minimum */
}

.btn-primary-responsive {
    background: linear-gradient(135deg, #D4AF37 0%, #B8941F 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-primary-responsive:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

.btn-secondary-responsive {
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.btn-secondary-responsive:hover {
    background: rgba(212, 175, 55, 0.1);
    border-color: #D4AF37;
}

/* ===== FORM RESPONSIVE ===== */
.form-responsive {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group-responsive {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-responsive {
    padding: 1rem;
    border: 2px solid rgba(212, 175, 55, 0.2);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.9);
    min-height: 48px; /* Touch-friendly */
}

.input-responsive:focus {
    outline: none;
    border-color: #D4AF37;
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* ===== TEXT RESPONSIVE ===== */
.text-responsive {
    line-height: 1.6;
}

.heading-responsive {
    font-weight: 700;
    line-height: 1.2;
}

/* ===== SPACING RESPONSIVE ===== */
.section-responsive {
    padding: 2rem 1rem;
}

.section-responsive-lg {
    padding: 3rem 1rem;
}

/* ===== TABLET BREAKPOINT (768px+) ===== */
@media (min-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 2rem;
    }
    
    .grid-responsive {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .section-responsive {
        padding: 3rem 2rem;
    }
    
    .section-responsive-lg {
        padding: 4rem 2rem;
    }
    
    .card-responsive {
        padding: 2rem;
    }
    
    .btn-responsive {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
    
    .heading-responsive {
        font-size: 2.5rem;
    }
    
    .text-responsive {
        font-size: 1.1rem;
    }
}

/* ===== DESKTOP BREAKPOINT (1024px+) ===== */
@media (min-width: 1024px) {
    .container {
        max-width: 1200px;
        padding: 0 3rem;
    }
    
    .grid-responsive {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }
    
    .section-responsive {
        padding: 4rem 3rem;
    }
    
    .section-responsive-lg {
        padding: 6rem 3rem;
    }
    
    .card-responsive {
        padding: 2.5rem;
    }
    
    .btn-responsive {
        padding: 1.25rem 2.5rem;
        font-size: 1.2rem;
    }
    
    .heading-responsive {
        font-size: 3rem;
    }
    
    .text-responsive {
        font-size: 1.2rem;
    }
    
    /* Hide hamburger on desktop */
    .hamburger {
        display: none;
    }
    
    /* Show desktop navigation */
    .nav-menu {
        display: flex;
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        backdrop-filter: none;
        flex-direction: row;
        gap: 1rem;
    }
    
    .nav-menu a {
        color: #333;
        font-size: 1rem;
        padding: 0.5rem 1rem;
    }
}

/* ===== LARGE DESKTOP BREAKPOINT (1280px+) ===== */
@media (min-width: 1280px) {
    .container {
        max-width: 1400px;
    }
    
    .grid-responsive {
        grid-template-columns: repeat(4, 1fr);
        gap: 2.5rem;
    }
    
    .heading-responsive {
        font-size: 3.5rem;
    }
}

/* ===== MOBILE SPECIFIC OPTIMIZATIONS ===== */
@media (max-width: 767px) {
    /* Optimize touch targets */
    button, a, input, select, textarea {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Improve readability on small screens */
    body {
        font-size: 16px; /* Prevent zoom on iOS */
    }
    
    /* Optimize spacing for mobile */
    .mobile-spacing {
        margin: 1rem 0;
        padding: 1rem;
    }
    
    /* Stack elements vertically on mobile */
    .mobile-stack {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* Full width on mobile */
    .mobile-full {
        width: 100%;
        max-width: none;
    }
    
    /* Optimize images for mobile */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* Improve form usability on mobile */
    input, select, textarea {
        font-size: 16px; /* Prevent zoom on iOS */
        padding: 12px;
    }
}

/* ===== TABLET SPECIFIC OPTIMIZATIONS ===== */
@media (min-width: 768px) and (max-width: 1023px) {
    .tablet-center {
        text-align: center;
    }
    
    .tablet-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ===== LANDSCAPE MOBILE OPTIMIZATIONS ===== */
@media (max-width: 767px) and (orientation: landscape) {
    .nav-menu {
        padding: 1rem 0;
    }
    
    .nav-menu a {
        font-size: 1.2rem;
        padding: 0.75rem 1.5rem;
    }
}

/* ===== HIGH DPI DISPLAYS ===== */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .card-responsive {
        border-width: 0.5px;
    }
}

/* ===== ACCESSIBILITY IMPROVEMENTS ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
    .card-responsive {
        background: rgba(30, 30, 30, 0.9);
        color: #fff;
    }
    
    .input-responsive {
        background: rgba(30, 30, 30, 0.9);
        color: #fff;
        border-color: rgba(212, 175, 55, 0.4);
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .nav-container,
    .hamburger,
    .btn-responsive {
        display: none !important;
    }
    
    .card-responsive {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center-responsive {
    text-align: center;
}

.text-left-responsive {
    text-align: left;
}

.text-right-responsive {
    text-align: right;
}

.hidden-mobile {
    display: none;
}

.hidden-tablet {
    display: none;
}

.hidden-desktop {
    display: none;
}

@media (min-width: 768px) {
    .hidden-mobile {
        display: block;
    }
}

@media (min-width: 1024px) {
    .hidden-tablet {
        display: block;
    }
}

@media (max-width: 1023px) {
    .hidden-desktop {
        display: block;
    }
}

/* ===== ANIMATION RESPONSIVE ===== */
.fade-in-responsive {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in-responsive.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-up-responsive {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.4s ease;
}

.slide-up-responsive.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== LOADING STATES ===== */
.loading-responsive {
    position: relative;
    overflow: hidden;
}

.loading-responsive::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
} 
}