/* MANTRA E-commerce - DEEP BLUE LAB Theme */
/* Color Palette */
:root {
    --deep-ocean: #041C2C;
    --navy: #0A2E4E;
    --electric-aqua: #00D8FF;
    --electric-aqua-dim: rgba(0, 216, 255, 0.4);
    --leaf-accent: #39D98A;
    --off-white: #F6F8FB;
    --white: #FFFFFF;
    --text-dark: #041C2C;
    --text-light: #6B7C93;
    --glow-aqua: 0 0 30px rgba(0, 216, 255, 0.4);
    --glow-strong: 0 0 50px rgba(0, 216, 255, 0.5);
    /* Ocean Theme Background - Tuning (adjust for intensity) */
    --ocean-deep: #001B44;
    --ocean-mid: #003B8E;
    --ocean-teal: #0A6FB6;
    --ocean-glow: #7FD9FF;
    --rays-opacity: 0.12;      /* God rays intensity (0.05-0.2) */
    --caustics-opacity: 0.08;  /* Underwater caustics (0.04-0.15) */
    --particles-opacity: 0.15; /* Bubbles/dust (0.08-0.25) */
    --vignette-opacity: 0.4;   /* Edge darkness (0.2-0.6) */
}

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

html {
    scroll-behavior: smooth;
}

/* Global fixed ocean background - full viewport, all pages */
body {
    font-family: 'Inter', 'Kanit', sans-serif;
    background: transparent;
    color: var(--off-white);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-image:
        /* Vignette - darker edges/bottom */
        radial-gradient(ellipse 120% 100% at 50% 80%, transparent 40%, rgba(0, 0, 0, var(--vignette-opacity)) 100%),
        /* Caustics - underwater light ripples (very slow) */
        repeating-radial-gradient(ellipse 80% 40% at 20% 30%, rgba(127, 217, 255, var(--caustics-opacity)) 0%, transparent 20%),
        repeating-radial-gradient(ellipse 60% 50% at 80% 70%, rgba(127, 217, 255, calc(var(--caustics-opacity) * 0.7)) 0%, transparent 25%),
        /* Sun rays / god rays from top */
        linear-gradient(165deg, rgba(127, 217, 255, var(--rays-opacity)) 0%, transparent 25%),
        linear-gradient(185deg, rgba(127, 217, 255, calc(var(--rays-opacity) * 0.6)) 0%, transparent 30%),
        linear-gradient(175deg, rgba(127, 217, 255, calc(var(--rays-opacity) * 0.5)) 0%, transparent 35%),
        /* Floating particles (bubbles/dust) */
        radial-gradient(2px 2px at 15% 20%, rgba(127, 217, 255, var(--particles-opacity)), transparent),
        radial-gradient(2px 2px at 65% 45%, rgba(127, 217, 255, calc(var(--particles-opacity) * 0.8)), transparent),
        radial-gradient(1.5px 1.5px at 85% 75%, rgba(127, 217, 255, calc(var(--particles-opacity) * 0.6)), transparent),
        radial-gradient(2px 2px at 35% 85%, rgba(127, 217, 255, calc(var(--particles-opacity) * 0.7)), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(127, 217, 255, calc(var(--particles-opacity) * 0.5)), transparent),
        /* Base gradient - deep ocean */
        linear-gradient(180deg, var(--ocean-mid) 0%, var(--ocean-teal) 25%, var(--ocean-deep) 60%, #000d1a 100%);
    background-size:
        100% 100%,
        200% 200%,
        250% 250%,
        100% 100%,
        100% 100%,
        100% 100%,
        220% 220%,
        180% 180%,
        200% 200%,
        150% 150%,
        240% 240%,
        100% 100%;
    background-position:
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0,
        0 0;
    background-repeat: no-repeat, repeat, repeat, no-repeat, no-repeat, no-repeat, repeat, repeat, repeat, repeat, repeat, no-repeat;
}

@keyframes ocean-caustics-drift {
    0%, 100% { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0 0; }
    50% { background-position: 0 0, 5% 2%, -3% 4%, 0 0, 0 0, 0 0, 2% 1%, -2% 3%, 3% 2%, 1% 1%, -1% 2%, 0 0; }
}

@keyframes ocean-particles-float {
    0%, 100% { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0 0; }
    50% { background-position: 0 0, 0 0, 0 0, 0 0, 0 0, 0 0, 3% 2%, -2% 1%, 2% 3%, -1% 2%, 1% 1%, 0 0; }
}

body::before {
    animation: ocean-caustics-drift 25s ease-in-out infinite, ocean-particles-float 35s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    body::before {
        animation: none;
    }
    .section-title::after,
    .bento-card:hover::before,
    .review-card:hover::after {
        animation: none !important;
    }
}

.lang-th {
    font-family: 'Kanit', 'Prompt', sans-serif;
}

.lang-en {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Header */
.main-header {
    background: linear-gradient(135deg, #1D3B8E 0%, #0A2E4E 100%);
    backdrop-filter: blur(20px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 216, 255, 0.25);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(0, 216, 255, 0.05);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 90px;
    width: auto;
    max-width: 360px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.2)) drop-shadow(0 0 20px rgba(0, 216, 255, 0.15));
}

.logo-img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 2px 12px rgba(0, 0, 0, 0.25)) drop-shadow(0 0 25px rgba(255, 255, 255, 0.35));
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin-left: 3rem;
    flex-wrap: nowrap;
}

.nav-menu li {
    flex-shrink: 0;
}

.nav-link {
    color: rgba(246, 248, 251, 0.9);
    font-weight: 500;
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--electric-aqua);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--electric-aqua), var(--leaf-accent));
    border-radius: 0 0 3px 3px;
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 12px rgba(0, 216, 255, 0.5);
}

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

/* Wave effect on nav icon hover */
.nav-link-icon:hover {
    transform: translateY(-2px);
}

/* Prominent icons - ดึงดูด */
.nav-link-icon {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.nav-link-icon i {
    font-size: 1.1em;
    color: var(--electric-aqua);
    transition: all 0.3s ease;
}

.nav-link-icon:hover i {
    color: var(--leaf-accent);
    transform: scale(1.15);
    filter: drop-shadow(0 0 6px rgba(0, 216, 255, 0.6));
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}

/* Language switcher - ธงชาติ อยู่ขวาสุด */
.language-switcher.language-flags {
    display: flex;
    gap: 0.35rem;
    align-items: center;
    margin-left: 0.5rem;
    padding-left: 0.75rem;
    border-left: 1px solid rgba(0, 216, 255, 0.2);
}

.language-switcher .lang-btn.lang-flag {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid transparent;
    transition: all 0.3s ease;
    text-decoration: none;
}

.language-switcher .lang-btn.lang-flag .flag-img {
    display: block;
    border-radius: 4px;
    object-fit: cover;
}

.language-switcher .lang-btn.lang-flag:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--electric-aqua);
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(0, 216, 255, 0.4);
}

.language-switcher .lang-btn.lang-flag.active {
    background: rgba(0, 216, 255, 0.2);
    border-color: var(--electric-aqua);
    box-shadow: 0 0 12px rgba(0, 216, 255, 0.5);
}

.cart-icon {
    position: relative;
    font-size: 1.4rem;
    color: rgba(246, 248, 251, 0.9);
    transition: all 0.3s ease;
}

.cart-icon i {
    color: var(--electric-aqua);
}

.cart-icon:hover {
    color: var(--electric-aqua);
}

.cart-icon:hover i {
    transform: scale(1.1);
    filter: drop-shadow(0 0 6px rgba(0, 216, 255, 0.6));
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--leaf-accent);
    color: var(--deep-ocean);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: rgba(246, 248, 251, 0.9);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.mobile-menu-toggle:hover {
    color: var(--electric-aqua);
}

/* Hero Section with Carousel */
.hero-section {
    min-height: auto;
    position: relative;
    overflow: hidden;
    padding-top: 120px;
}

/* Wave divider - คลื่นใต้ banner */
.hero-section::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath fill='rgba(4,28,44,0.95)' d='M0 60 L0 30 Q360 0 720 30 T1440 30 L1440 60 Z'/%3E%3Cpath fill='rgba(4,28,44,0.95)' d='M0 60 L0 40 Q360 15 720 40 T1440 40 L1440 60 Z' opacity='0.8'/%3E%3C/svg%3E") no-repeat bottom;
    background-size: 100% 60px;
    z-index: 2;
}

.hero-carousel {
    position: relative;
    width: 100%;
    height: min(60vh, 520px);
    overflow: hidden;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease-in-out, visibility 0.8s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 0;
}

.hero-slide.active {
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 1 !important;
}

/* Banner slides - use uploaded image as background */
.hero-slide-banner {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
}

/* Mock-up Hero Slides - transparent so global ocean shows through */
.hero-slide-1,
.hero-slide-2,
.hero-slide-3,
.hero-slide-4,
.hero-slide-5 {
    background: transparent;
    position: relative;
}

.hero-slide-1::before,
.hero-slide-2::before,
.hero-slide-3::before,
.hero-slide-4::before,
.hero-slide-5::before {
    content: none;
}

/* Animations for mock-up backgrounds */
@keyframes ocean-wave {
    0%, 100% { background-position: 0% 0%, 0% 0%, 100% 100%; }
    50% { background-position: 0% 0%, 50% 50%, 50% 50%; }
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes deep-ocean {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.1); }
}

@keyframes sparkle {
    0%, 100% { background-position: 0% 0%, 100% 100%, 50% 50%; }
    50% { background-position: 100% 100%, 0% 0%, 50% 50%; }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(4, 28, 44, 0.85) 0%,
        rgba(10, 46, 78, 0.75) 50%,
        rgba(4, 28, 44, 0.85) 100%
    );
    z-index: 1;
}

.hero-overlay-light {
    background: rgba(0, 0, 0, 0.15);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    padding: 0 20px;
}

/* Carousel Controls */
.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 216, 255, 0.2);
    border: 2px solid var(--electric-aqua);
    color: var(--electric-aqua);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    font-size: 1.2rem;
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(0, 216, 255, 0.4);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 20px rgba(0, 216, 255, 0.5);
}

.carousel-prev:active,
.carousel-next:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-prev {
    left: 30px;
}

.carousel-next {
    right: 30px;
}

/* Carousel Indicators */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 2px solid var(--electric-aqua);
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.indicator:hover {
    background: rgba(0, 216, 255, 0.5);
    transform: scale(1.2);
}

.indicator:active {
    transform: scale(0.9);
}

.indicator.active {
    background: var(--electric-aqua);
    border-color: var(--electric-aqua);
    box-shadow: 0 0 10px rgba(0, 216, 255, 0.8);
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--electric-aqua) 0%, #7DF9FF 50%, var(--leaf-accent) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(0, 216, 255, 0.3));
}

.hero-subtitle {
    font-size: clamp(1.25rem, 2.2vw, 1.6rem);
    color: rgba(246, 248, 251, 0.95);
    margin-bottom: 2.5rem;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--electric-aqua);
    font-size: 1.5rem;
    text-shadow: 0 0 20px rgba(0, 216, 255, 0.5);
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.8; }
    50% { transform: translateX(-50%) translateY(-10px); opacity: 1; }
}

/* Responsive Carousel */
@media (max-width: 768px) {
    .carousel-prev,
    .carousel-next {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .carousel-prev {
        left: 15px;
    }
    
    .carousel-next {
        right: 15px;
    }
    
    .carousel-indicators {
        bottom: 20px;
    }
    
    .indicator {
        width: 10px;
        height: 10px;
    }
    
    .hero-slide {
        background-position: center center;
    }
}

@media (max-width: 480px) {
    .carousel-prev,
    .carousel-next {
        width: 35px;
        height: 35px;
        font-size: 0.8rem;
    }
    
    .carousel-prev {
        left: 10px;
    }
    
    .carousel-next {
        right: 10px;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 1rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

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

.btn:active::after {
    width: 200px;
    height: 200px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--electric-aqua), #00B8D4);
    color: var(--deep-ocean);
    box-shadow: 0 4px 25px rgba(0, 216, 255, 0.5), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 216, 255, 0.6), 0 0 30px rgba(0, 216, 255, 0.3), inset 0 0 20px rgba(255,255,255,0.1);
}

.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 0.5s ease;
}

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

.btn-pulse {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 4px 25px rgba(0, 216, 255, 0.5), inset 0 1px 0 rgba(255,255,255,0.2); }
    50% { box-shadow: 0 8px 35px rgba(0, 216, 255, 0.7), 0 0 25px rgba(0, 216, 255, 0.3); }
}

.btn-secondary {
    background: rgba(0, 216, 255, 0.1);
    color: var(--electric-aqua);
    border: 2px solid var(--electric-aqua);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--electric-aqua);
    color: var(--deep-ocean);
    transform: translateY(-4px);
    box-shadow: var(--glow-aqua);
}

.btn-outline {
    background: transparent;
    color: var(--electric-aqua);
    border: 1px solid var(--electric-aqua);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-outline:hover {
    background: var(--electric-aqua);
    color: var(--deep-ocean);
}

/* Section Titles */
.section-title {
    text-align: center;
    margin-bottom: 1rem;
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--electric-aqua), var(--leaf-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 6px;
    margin: 1rem auto 0;
    background: linear-gradient(90deg, var(--electric-aqua), var(--leaf-accent));
    border-radius: 0 0 50% 50% / 0 0 100% 100%;
    box-shadow: 0 0 15px rgba(0, 216, 255, 0.5);
    animation: wave-glow 2.5s ease-in-out infinite;
}

@keyframes wave-glow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.85; }
}

.section-title i {
    margin-right: 0.5rem;
    -webkit-text-fill-color: var(--electric-aqua);
    filter: drop-shadow(0 0 8px rgba(0, 216, 255, 0.5));
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Page Title (inner pages) */
.page-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--electric-aqua), var(--leaf-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.page-title i {
    -webkit-text-fill-color: initial;
}

/* Product Cards */
.bestsellers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.product-card {
    background: linear-gradient(145deg, rgba(0, 59, 142, 0.55), rgba(0, 27, 68, 0.5));
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 216, 255, 0.15);
    backdrop-filter: blur(10px);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 8px;
    background: linear-gradient(90deg, transparent, rgba(0, 216, 255, 0.3), transparent);
    border-radius: 0 0 24px 24px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-card:hover {
    transform: translateY(-12px);
    border-color: var(--electric-aqua);
    box-shadow: 0 20px 50px rgba(0, 216, 255, 0.25), 0 0 40px rgba(0, 216, 255, 0.1);
}

.product-card:hover::before {
    opacity: 1;
}

.product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
    background: linear-gradient(145deg, var(--navy), var(--deep-ocean));
    contain: layout style paint;
    will-change: auto;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.product-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: linear-gradient(to top, rgba(0, 27, 68, 0.7), rgba(0, 216, 255, 0.05), transparent);
    pointer-events: none;
    border-radius: 0 0 24px 24px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
    opacity: 1 !important;
    visibility: visible !important;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    image-rendering: auto;
    will-change: transform;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

/* Prevent image loading flicker */
.product-image img[src=""],
.product-image img:not([src]) {
    opacity: 0;
}

.product-image img.loaded {
    opacity: 1 !important;
}

.product-image img.error {
    opacity: 1 !important;
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(4, 28, 44, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.btn-quick-add {
    background: linear-gradient(135deg, var(--electric-aqua), #00B8D4);
    color: var(--deep-ocean);
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 216, 255, 0.4);
}

.btn-quick-add:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 30px rgba(0, 216, 255, 0.6);
}

.product-info {
    padding: 1.5rem;
}

.product-info h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--off-white);
}

.product-price {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--electric-aqua);
}

.compare-price {
    font-size: 1rem;
    color: var(--text-light);
    text-decoration: line-through;
}

/* Features Section */
.features-section {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 216, 255, 0.03) 50%, transparent 100%);
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.bento-card {
    background: linear-gradient(145deg, rgba(0, 59, 142, 0.5), rgba(0, 27, 68, 0.4));
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid rgba(0, 216, 255, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--electric-aqua), var(--leaf-accent), var(--electric-aqua));
    background-size: 200% 100%;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 24px 24px 0 0;
}

.bento-card:hover::before {
    transform: scaleX(1);
    animation: wave-gradient 2s ease infinite;
}

@keyframes wave-gradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.bento-card:hover {
    transform: translateY(-8px);
    border-color: var(--electric-aqua);
    box-shadow: 0 15px 45px rgba(0, 216, 255, 0.2), 0 0 30px rgba(0, 216, 255, 0.08);
}

.bento-card:hover .bento-icon {
    transform: scale(1.1);
}

.bento-large {
    grid-column: span 2;
}

.bento-icon {
    font-size: 3rem;
    color: var(--electric-aqua);
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.bento-card h3 {
    color: var(--electric-aqua);
    margin-bottom: 1rem;
}

.bento-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Bestsellers Section */
.bestsellers-section {
    background: linear-gradient(180deg, transparent 0%, rgba(0, 27, 68, 0.15) 50%, transparent 100%);
}

/* Cook Section */
.cook-section {
    background: linear-gradient(135deg, rgba(0, 59, 142, 0.12) 0%, rgba(0, 27, 68, 0.08) 100%);
}

.cook-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.cook-video {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 16/9;
    background: var(--navy);
    border: 1px solid rgba(0, 216, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), inset 0 0 30px rgba(0, 216, 255, 0.05);
    transition: all 0.4s ease;
}

.cook-video:hover {
    border-color: var(--electric-aqua);
    box-shadow: 0 15px 50px rgba(0, 216, 255, 0.2), 0 0 40px rgba(0, 216, 255, 0.1);
}

.video-embed-wrap {
    width: 100%;
    height: 100%;
    position: relative;
}

.video-embed-wrap iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy) 0%, var(--deep-ocean) 50%, rgba(0, 216, 255, 0.1) 100%);
    color: var(--electric-aqua);
    cursor: pointer;
    transition: all 0.4s ease;
    text-decoration: none;
}

.video-placeholder:hover {
    background: linear-gradient(135deg, var(--deep-ocean) 0%, var(--navy) 50%, rgba(0, 216, 255, 0.15) 100%);
}

.video-placeholder:hover i {
    transform: scale(1.2);
}

.video-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.cook-text h2 {
    color: var(--electric-aqua);
    margin-bottom: 1rem;
}

.cook-text p {
    color: var(--text-light);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.cook-steps {
    list-style: none;
}

.cook-steps li {
    padding: 0.75rem 0;
    color: var(--off-white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.cook-steps i {
    color: var(--leaf-accent);
}

/* Reviews Section */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.review-card {
    background: linear-gradient(145deg, rgba(0, 59, 142, 0.5), rgba(0, 27, 68, 0.4));
    border-radius: 24px;
    padding: 2rem;
    border: 1px solid rgba(0, 216, 255, 0.15);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.review-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--electric-aqua), var(--leaf-accent), transparent);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity 0.4s ease;
    border-radius: 0 0 24px 24px;
}

.review-card:hover {
    border-color: var(--electric-aqua);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 216, 255, 0.2);
}

.review-card:hover::after {
    opacity: 1;
    animation: wave-gradient 2s ease infinite;
}

.review-rating {
    margin-bottom: 1rem;
}

.review-rating .fa-star {
    color: var(--text-light);
    margin-right: 0.25rem;
}

.review-rating .fa-star.active {
    color: #FFD700;
}

.review-text {
    color: var(--off-white);
    margin-bottom: 1rem;
    line-height: 1.8;
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--electric-aqua);
}

.verified-badge {
    font-size: 0.85rem;
    color: var(--leaf-accent);
}

/* Bundle Section */
.bundles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.bundle-card {
    background: linear-gradient(145deg, rgba(0, 59, 142, 0.55), rgba(0, 27, 68, 0.5));
    border-radius: 24px;
    padding: 2.5rem;
    border: 2px solid rgba(0, 216, 255, 0.2);
    text-align: center;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.bundle-card:hover {
    border-color: var(--electric-aqua);
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(0, 216, 255, 0.3), 0 0 40px rgba(0, 216, 255, 0.1);
}

.bundle-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background: var(--leaf-accent);
    color: var(--deep-ocean);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
}

.bundle-card h3 {
    color: var(--electric-aqua);
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.bundle-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.bundle-price {
    margin-bottom: 1.5rem;
}

.discount-badge {
    display: inline-block;
    background: var(--leaf-accent);
    color: var(--deep-ocean);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    margin-left: 1rem;
}

/* Footer */
.main-footer {
    background: linear-gradient(180deg, rgba(0, 59, 142, 0.12) 0%, rgba(0, 27, 68, 0.25) 30%);
    border-top: 1px solid rgba(0, 216, 255, 0.15);
    padding: 3rem 0 1rem;
    margin-top: 4rem;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section a:first-child {
    display: inline-block;
}

.footer-logo {
    height: 100px;
    width: auto;
    max-width: 340px;
    object-fit: contain;
    margin-bottom: 1.25rem;
    display: block;
    filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.2)) drop-shadow(0 0 25px rgba(0, 216, 255, 0.15));
    transition: all 0.3s ease;
}

.footer-section a:hover .footer-logo {
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.25)) drop-shadow(0 0 30px rgba(255, 255, 255, 0.2));
    transform: scale(1.03);
}

.footer-section h3,
.footer-section h4 {
    color: var(--electric-aqua);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section h4 i {
    font-size: 1.1em;
    color: var(--leaf-accent);
}

.footer-section ul li a i {
    margin-right: 0.5rem;
    color: var(--electric-aqua);
    width: 1.1em;
    transition: transform 0.3s ease;
}

.footer-section ul li a:hover i {
    transform: scale(1.15);
    color: var(--leaf-accent);
}

.footer-section p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.footer-section ul li i {
    margin-right: 0.5rem;
    color: var(--electric-aqua);
}

.footer-section a {
    color: var(--text-light);
}

.footer-section a:hover {
    color: var(--electric-aqua);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 216, 255, 0.1);
    border-radius: 50%;
    color: var(--electric-aqua);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--electric-aqua);
    color: var(--deep-ocean);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 216, 255, 0.1);
    color: var(--text-light);
}

.footer-seo-keywords {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 0.75rem;
    line-height: 1.5;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Mobile Bottom Navigation - เมนูล่างมือถือ */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: linear-gradient(180deg, rgba(4, 28, 44, 0.98) 0%, rgba(10, 46, 78, 0.98) 100%);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(0, 216, 255, 0.2);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    padding: 0.5rem 0;
    padding-bottom: max(0.5rem, env(safe-area-inset-bottom));
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
    
    body:has(.main-footer) {
        padding-bottom: 75px;
    }
    
    body:has(.mobile-bottom-nav) .chat-widget {
        bottom: 85px;
    }
    
    body:has(.mobile-bottom-nav) .chat-window {
        bottom: 150px;
    }
}

.mob-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    min-width: 50px;
    border-radius: 12px;
}

.mob-nav-icon-wrap {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mob-nav-item i {
    font-size: 1.25rem;
    color: rgba(0, 216, 255, 0.6);
    transition: all 0.3s ease;
}

.mob-nav-item:hover,
.mob-nav-item:active {
    color: var(--electric-aqua);
}

.mob-nav-item:hover i {
    color: var(--electric-aqua);
}

.mob-nav-item.active {
    color: var(--electric-aqua);
}

.mob-nav-item.active i {
    color: var(--electric-aqua);
    filter: drop-shadow(0 0 8px rgba(0, 216, 255, 0.5));
}

.mob-nav-badge {
    position: absolute;
    top: -4px;
    right: -8px;
    background: var(--leaf-accent);
    color: var(--deep-ocean);
    font-size: 0.6rem;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

.mob-nav-label {
    white-space: nowrap;
}

/* Live Chat Widget */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.chat-toggle {
    width: 60px;
    height: 60px;
    background: var(--electric-aqua);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 216, 255, 0.4);
    transition: all 0.3s ease;
    position: relative;
    color: var(--deep-ocean);
    font-size: 1.5rem;
}

.chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 216, 255, 0.6);
}

.chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--leaf-accent);
    color: var(--deep-ocean);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: var(--navy);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    display: none;
    flex-direction: column;
    border: 1px solid rgba(0, 216, 255, 0.2);
}

.chat-widget.open .chat-window {
    display: flex;
}

.chat-header {
    padding: 1rem;
    border-bottom: 1px solid rgba(0, 216, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(4, 28, 44, 0.5);
    border-radius: 20px 20px 0 0;
}

.chat-header h3 {
    color: var(--electric-aqua);
    font-size: 1rem;
    margin: 0;
}

.chat-close {
    background: none;
    border: none;
    color: var(--electric-aqua);
    cursor: pointer;
    font-size: 1.2rem;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chat-message {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.user-message {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--electric-aqua);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--deep-ocean);
    flex-shrink: 0;
}

.user-message .message-avatar {
    background: var(--leaf-accent);
}

.message-content {
    background: rgba(0, 216, 255, 0.1);
    padding: 0.75rem 1rem;
    border-radius: 15px;
    max-width: 70%;
}

.user-message .message-content {
    background: rgba(57, 217, 138, 0.2);
}

.message-content p {
    margin: 0;
    color: var(--off-white);
    font-size: 0.9rem;
}

.chat-input-area {
    padding: 1rem;
    border-top: 1px solid rgba(0, 216, 255, 0.1);
    display: flex;
    gap: 0.5rem;
    background: rgba(4, 28, 44, 0.5);
    border-radius: 0 0 20px 20px;
}

.chat-input-area input {
    flex: 1;
    background: rgba(0, 216, 255, 0.1);
    border: 1px solid rgba(0, 216, 255, 0.2);
    border-radius: 25px;
    padding: 0.75rem 1rem;
    color: var(--off-white);
    font-size: 0.9rem;
}

.chat-input-area input::placeholder {
    color: var(--text-light);
}

.chat-input-area input:focus {
    outline: none;
    border-color: var(--electric-aqua);
}

.chat-send-btn {
    width: 40px;
    height: 40px;
    background: var(--electric-aqua);
    border: none;
    border-radius: 50%;
    color: var(--deep-ocean);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.chat-send-btn:hover {
    transform: scale(1.1);
}

/* Responsive Design - Mobile First */
@media (max-width: 992px) {
    .navbar {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        order: 3;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 0.75rem 0;
    }
    
    .main-header .container {
        padding: 0 16px;
    }
    
    .navbar {
        flex-wrap: nowrap;
        gap: 0.5rem;
    }
    
    .nav-brand .logo-img {
        height: 58px;
        max-width: 200px;
    }
    
    .nav-menu {
        position: fixed;
        top: 90px;
        left: -100%;
        margin-left: 0;
        flex-direction: column;
        background: linear-gradient(180deg, var(--deep-ocean) 0%, var(--navy) 100%);
        width: 100%;
        max-width: 320px;
        padding: 1.5rem;
        transition: left 0.3s ease;
        border-right: 1px solid rgba(0, 216, 255, 0.2);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.3);
        z-index: 999;
        align-items: stretch;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu .nav-link {
        padding: 1rem 1.25rem;
        font-size: 1rem;
        border-radius: 12px;
    }
    
    .nav-menu .nav-link:hover {
        background: rgba(0, 216, 255, 0.1);
    }
    
    .nav-menu .nav-link-icon i {
        font-size: 1.2em;
    }
    
    .nav-actions {
        gap: 0.5rem;
        margin-left: auto;
    }
    
    .nav-account-name {
        display: none;
    }
    
    .language-switcher.language-flags {
        margin-left: 0.25rem;
        padding-left: 0.5rem;
    }
    
    .language-switcher .lang-btn.lang-flag {
        width: 36px;
        height: 36px;
    }
    
    .language-switcher .lang-btn.lang-flag .flag-img {
        width: 24px;
        height: 18px;
    }
    
    .cart-icon {
        font-size: 1.25rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        padding: 0;
    }
    
    .hero-section {
        padding-top: 95px;
        min-height: auto;
    }
    
    .hero-carousel {
        height: min(55vh, 380px);
    }
    
    .hero-title {
        font-size: clamp(1.5rem, 5vw, 2rem);
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .hero-cta .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .bento-large {
        grid-column: span 1;
    }
    
    .cook-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .bestsellers-grid,
    .bundles-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .chat-window {
        width: calc(100vw - 32px);
        max-width: 360px;
        right: 16px;
    }
    
    h1 { font-size: clamp(1.5rem, 5vw, 2rem); }
    h2 { font-size: clamp(1.4rem, 4vw, 1.75rem); }
    h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }
    
    .section-padding {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .section-padding {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
        min-height: 48px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-logo {
        height: 80px;
        max-width: 280px;
        margin-left: auto;
        margin-right: auto;
    }
    
    .footer-section ul {
        padding-left: 0;
    }
    
    .social-links {
        justify-content: center;
    }
    
    /* Touch-friendly tap targets */
    .nav-link,
    .lang-btn,
    .cart-icon,
    .mobile-menu-toggle {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* Loading Animation */
@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple-effect {
    position: relative;
    overflow: hidden;
}

.ripple-effect::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    animation: ripple 0.6s ease-out;
}