/* 
 * Al Cuadrado / Made for Love — Design System 
 * Style: Quiet Luxury / Minimalist / Editorial
 */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@200..800&family=Noto+Serif:ital,wght@0,100..900;1,100..900&display=swap');

:root {
    /* Color Palette - Cream, Gold, Charcoal */
    --surface: #fcf9f8;
    --surface-dim: #dcd9d9;
    --surface-bright: #fcf9f8;
    --surface-container: #f0eded;
    --surface-container-low: #f5f2f1;
    --surface-container-lowest: #ffffff;
    --on-surface: #1b1c1c;
    --on-surface-variant: #4e4639;
    
    --primary: #775a19; /* Brushed Gold */
    --on-primary: #ffffff;
    --primary-container: #c5a059;
    --on-primary-container: #4e3700;
    
    --secondary: #5e5e5b;
    --on-secondary: #ffffff;
    --secondary-container: #e1dfdb;
    
    --tertiary: #625e55; /* Sand */
    --outline: #7f7667;
    --outline-variant: #d1c5b4;
    
    --error: #ba1a1a;
    
    /* Typography */
    --font-serif: 'Noto Serif', serif;
    --font-sans: 'Manrope', sans-serif;
    
    /* Spacing & Layout */
    --unit: 8px;
    --container-max: 1280px;
    --section-gap: 120px;
    --section-gap-mobile: 80px;
    
    /* Transitions */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--surface);
    color: var(--on-surface);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, .serif {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Typography Utilities */
.display-lg { font-size: clamp(2.5rem, 8vw, 4rem); letter-spacing: -0.02em; }
.display-md { font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -0.01em; }
.headline-lg { font-size: clamp(1.5rem, 3vw, 2rem); }
.body-lg { font-size: 1.125rem; }
.body-md { font-size: 1rem; }
.label-lg { font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; }

/* =====================================================
   LAYOUT & RESPONSIVE
   ===================================================== */
.container {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    padding-right: 20px;
    padding-left: 20px;
}

@media (min-width: 576px) { .container { max-width: 540px; } }
@media (min-width: 768px) { .container { max-width: 720px; } }
@media (min-width: 992px) { .container { max-width: 960px; } }
@media (min-width: 1200px) { .container { max-width: 1140px; } }
@media (min-width: 1400px) { .container { max-width: 1320px; } }

.grid {
    display: grid;
    gap: 20px;
}

/* Mobile First: Grids are 1 column by default */
.responsive-grid-5, .responsive-grid-3, .responsive-grid-2 {
    display: grid;
    gap: 24px;
    grid-template-columns: 1fr;
}

/* Specific Product Grid: 2 columns on mobile */
.product-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 600px) {
    .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
    .product-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 600px) {
    .section { padding: 60px 0 !important; }
    .container { padding: 0 20px; }
    .headline-lg { font-size: 24px; }
    .display-md { font-size: 28px; }
    .display-lg { font-size: 32px; }
}

@media (min-width: 600px) {
    .responsive-grid-5, .responsive-grid-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
    .responsive-grid-3 { grid-template-columns: repeat(3, 1fr); }
    .responsive-grid-5 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
    .responsive-grid-5 { grid-template-columns: repeat(5, 1fr); }
    .responsive-grid-2 { grid-template-columns: 1fr 1fr; }
}

.section-spacing {
    padding: var(--section-gap) 0;
}

@media (max-width: 768px) {
    .section-spacing {
        padding: var(--section-gap-mobile) 0;
    }
}

/* Typography Scale Mobile First */
h1, .display-lg { font-size: 32px; line-height: 1.2; }
h2, .headline-lg { font-size: 24px; line-height: 1.3; }

@media (min-width: 768px) {
    h1, .display-lg { font-size: 64px; }
    h2, .headline-lg { font-size: 40px; }
}

/* Floating WhatsApp */
.whatsapp-float {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background-color: #25D366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128C7E;
}

/* Toast/Flash Messages */
.toast-container {
    position: fixed;
    top: 120px;
    right: 20px;
    z-index: 2000;
}

.toast {
    background: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    border-left: 4px solid var(--primary);
    animation: slideIn 0.4s ease-out;
}

.toast-error { border-left-color: #B00020; }

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

.flex {
    display: flex;
    gap: 16px;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    font-family: var(--font-sans);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--on-primary-container);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(119, 90, 25, 0.2);
}

.btn-outline {
    border-color: var(--outline);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: rgba(119, 90, 25, 0.05);
}

/* Form Elements */
input, textarea, select {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 1px solid var(--outline-variant);
    background: transparent;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--on-surface);
    transition: var(--transition-fast);
}

input:focus, textarea:focus {
    outline: none;
    border-bottom-color: var(--primary);
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.875rem;
    color: var(--on-surface-variant);
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition-smooth);
    position: relative;
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
}

/* Effects */
.fade-in {
    animation: fadeIn 1s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(252, 249, 248, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--outline-variant);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 12px 0;
}

/* Footer */
.footer {
    background-color: var(--on-surface);
    color: var(--surface);
    padding: 80px 0 40px;
}

/* 13. PRODUCT DETAILS ENHANCEMENTS */
.volume-pricing-table {
    border-left: 3px solid var(--primary);
    background: #fdfaf3;
    padding: 24px;
    margin-bottom: 32px;
}
.volume-pricing-table h4 {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 11px;
    margin-bottom: 16px;
    opacity: 0.7;
}
.volume-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(119, 90, 25, 0.1);
}
.volume-row:last-child {
    border-bottom: none;
}

.included-box {
    margin-top: 40px;
    padding: 32px;
    background: white;
    border: 1px solid var(--outline-variant);
    position: relative;
    overflow: hidden;
}
.included-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 4px; height: 100%;
    background: var(--primary);
}
.included-box h4 {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 24px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--outline-variant);
}
.spec-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.spec-item span:first-child {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.5;
}
.spec-item span:last-child {
    font-size: 14px;
    font-weight: 500;
}

/* Pagination */
.pagination .page-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--outline-variant);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition-smooth);
    color: var(--on-surface);
}

.pagination .page-link:hover,
.pagination .page-link.active {
    background-color: var(--on-surface);
    color: white;
    border-color: var(--on-surface);
}

/* 14. INTERACTIVITY & EFFECTS */
.nav-logo img {
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
}
.nav-logo:hover img {
    transform: scale(1.08);
    filter: brightness(1.05);
}

.product-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
}
.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(119, 90, 25, 0.1);
}

.img-wrapper {
    overflow: hidden;
}
.img-wrapper img {
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.product-card:hover .img-wrapper img {
    transform: scale(1.1);
}

.btn {
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.btn:hover {
    letter-spacing: 0.15em;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

/* CAROUSEL ENHANCEMENTS */
.carousel-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}
.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid rgba(255,255,255,0.1);
}
.dot.active {
    background: white;
    transform: scale(1.6);
    box-shadow: 0 0 15px rgba(255,255,255,0.6);
}

.carousel-control {
    opacity: 0;
    transition: all 0.4s ease;
}
.hero-carousel:hover .carousel-control {
    opacity: 1;
}

/* REVEAL ANIMATION */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}
.reveal {
    animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* 15. PRODUCT DETAIL REFACTOR */
.sku-label {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    opacity: 0.4;
    text-transform: uppercase;
    margin-bottom: 24px;
    display: block;
}

.tech-specs {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--outline-variant);
}
.tech-specs h3 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 24px;
    opacity: 0.7;
}
.specs-table {
    width: 100%;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--outline-variant);
    font-size: 14px;
}
.spec-row:last-child {
    border-bottom: none;
}
.spec-row span:first-child {
    opacity: 0.5;
}

.file-upload-wrapper {
    position: relative;
    margin-top: 16px;
}
.file-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: white;
    border: 1px dashed var(--outline-variant);
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
    width: 100%;
}
.file-upload-btn:hover {
    border-color: var(--primary);
    background: var(--surface-container-lowest);
}
.file-upload-wrapper input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

/* LIGHTBOX */
.lightbox {
    position: fixed;
    inset: 0;
    background: white;
    z-index: 3000;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    animation: lightboxFade 0.4s ease;
}
.lightbox.active { display: flex; }
.lightbox-close {
    position: absolute;
    top: 30px; right: 30px;
    font-size: 32px;
    cursor: pointer;
    z-index: 3001;
    color: var(--on-surface);
    background: none; border: none;
}
.lightbox-main {
    max-width: 90%;
    max-height: 70vh;
    object-fit: contain;
}
.lightbox-thumbs {
    margin-top: 40px;
    display: flex;
    gap: 12px;
    padding: 10px;
    overflow-x: auto;
    max-width: 100%;
}
.lightbox-thumb {
    width: 60px;
    height: 80px;
    object-fit: cover;
    cursor: pointer;
    opacity: 0.4;
    transition: 0.3s;
    border: 1px solid transparent;
}
.lightbox-thumb.active {
    opacity: 1;
    border-color: var(--primary);
}

@keyframes lightboxFade {
    from { opacity: 0; } to { opacity: 1; }
}

/* INQUIRY FORM */
.inquiry-box {
    margin-top: 64px;
    margin-bottom: 80px;
    padding: 40px;
    background: var(--surface-container-lowest);
    border: 1px solid var(--outline-variant);
    border-radius: 8px;
}
.inquiry-box h4 {
    margin-bottom: 24px;
}
.inquiry-box input, .inquiry-box textarea {
    background: white;
    margin-bottom: 16px;
    border-radius: 4px;
    border-color: var(--outline-variant);
}