/* ===================================
   Slushie Machine Australia - Styles
   Modern, Responsive CSS for 2026
   =================================== */

/* CSS Variables */
:root {
    --primary: #00b4d8;
    --primary-dark: #0096c7;
    --primary-light: #90e0ef;
    --secondary: #ff6b6b;
    --secondary-dark: #ee5a5a;
    --accent: #ffd93d;
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --gray-900: #212529;
    --gray-800: #343a40;
    --gray-700: #495057;
    --gray-600: #6c757d;
    --gray-500: #adb5bd;
    --gray-400: #ced4da;
    --gray-300: #dee2e6;
    --gray-200: #e9ecef;
    --gray-100: #f8f9fa;
    --white: #ffffff;
    --success: #4ade80;
    --warning: #fbbf24;
    --error: #f87171;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;

    --container-max: 1200px;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Section */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md), 0 0 20px rgba(0, 180, 216, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 180, 216, 0.4);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-amazon {
    background: linear-gradient(135deg, #ff9900 0%, #ff6600 100%);
    color: var(--white);
    font-weight: 700;
}

.btn-amazon:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
}

.logo:hover {
    color: var(--dark);
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-au {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu a {
    font-weight: 500;
    color: var(--gray-700);
    padding: 0.5rem 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--dark);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--white) 50%, #ffecd2 100%);
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 70%;
    height: 150%;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    flex: 1;
    padding: 2rem 0;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--dark);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
}

/* Slushie Animation */
.slushie-animation {
    position: relative;
    width: 200px;
    height: 280px;
}

.cup {
    position: relative;
    width: 120px;
    height: 180px;
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0.7) 100%);
    border-radius: 10px 10px 30px 30px;
    margin: 50px auto 0;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.1), var(--shadow-lg);
    overflow: hidden;
    border: 3px solid rgba(255,255,255,0.5);
}

.slushie-liquid {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80%;
    background: linear-gradient(180deg,
        #ff6b6b 0%,
        #ff8e8e 20%,
        #4ecdc4 40%,
        #45b7aa 60%,
        #00b4d8 80%,
        #0096c7 100%
    );
    border-radius: 0 0 27px 27px;
    animation: slushieWave 3s ease-in-out infinite;
}

@keyframes slushieWave {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.straw {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%) rotate(15deg);
    width: 12px;
    height: 140px;
    background: linear-gradient(90deg, #ff6b6b 0%, #ff8e8e 50%, #ff6b6b 100%);
    border-radius: 6px;
    z-index: 10;
}

.straw::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: #ff6b6b;
    border-radius: 50% 50% 0 0;
}

/* Products Section */
.products {
    background: var(--gray-100);
}

.view-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.view-btn {
    padding: 0.75rem;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

.view-btn svg {
    fill: var(--gray-600);
}

.view-btn:hover,
.view-btn.active {
    border-color: var(--primary);
    background: var(--primary);
}

.view-btn:hover svg,
.view-btn.active svg {
    fill: var(--white);
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.filter-btn {
    padding: 0.625rem 1.25rem;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Product Card */
.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.product-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--secondary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.product-badge.bestseller {
    background: var(--accent);
    color: var(--dark);
}

.product-badge.budget {
    background: var(--success);
}

.product-compare-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.product-compare-btn:hover,
.product-compare-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.product-compare-btn svg {
    width: 18px;
    height: 18px;
}

.product-content {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.product-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.product-feature {
    padding: 0.25rem 0.5rem;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--gray-700);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.stars {
    color: var(--accent);
    font-size: 0.875rem;
}

.rating-count {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.product-footer {
    margin-top: auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.product-price {
    font-size: 0.875rem;
    color: var(--gray-600);
}

.product-price strong {
    font-size: 1.25rem;
    color: var(--dark);
}

/* Products Table */
.products-table-wrapper {
    overflow-x: auto;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.products-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.products-table th,
.products-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.products-table th {
    background: var(--gray-100);
    font-weight: 600;
    color: var(--dark);
    white-space: nowrap;
}

.products-table tr:hover {
    background: var(--gray-50);
}

.products-table .product-title-cell {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.products-table .product-icon {
    width: 50px;
    height: 50px;
    background: var(--gray-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.hidden {
    display: none !important;
}

/* Quiz Section */
.quiz {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: var(--white);
}

.quiz .section-header h2 {
    color: var(--white);
}

.quiz .section-header p {
    color: var(--gray-400);
}

.quiz-container {
    max-width: 700px;
    margin: 0 auto;
}

.quiz-progress {
    margin-bottom: 2rem;
}

.progress-bar {
    height: 8px;
    background: var(--gray-700);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    width: 25%;
    transition: width 0.5s ease;
}

.progress-text {
    display: block;
    text-align: center;
    margin-top: 0.75rem;
    font-size: 0.875rem;
    color: var(--gray-400);
}

.quiz-question {
    display: none;
}

.quiz-question.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.quiz-question h3 {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 2rem;
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.quiz-options.multi {
    grid-template-columns: repeat(2, 1fr);
}

.quiz-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--white);
    transition: var(--transition);
}

.quiz-option:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
}

.quiz-option.selected {
    background: var(--primary);
    border-color: var(--primary);
}

.option-icon {
    font-size: 2rem;
}

.option-text {
    font-weight: 500;
    text-align: center;
}

.quiz-submit {
    margin-top: 2rem;
    width: 100%;
}

.quiz-results {
    text-align: center;
}

.quiz-results h3 {
    font-size: 1.75rem;
    margin-bottom: 2rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    text-align: center;
}

.result-card .product-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.result-card h4 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.result-card p {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.result-match {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--success);
    color: var(--dark);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}

#quiz-restart {
    margin-top: 1rem;
}

/* Compare Section */
.compare {
    background: var(--white);
}

.compare-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.compare-slot {
    position: relative;
}

.compare-select {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--white);
    cursor: pointer;
    transition: var(--transition-fast);
}

.compare-select:focus {
    outline: none;
    border-color: var(--primary);
}

.compare-table-wrapper {
    overflow-x: auto;
}

.compare-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.compare-table th,
.compare-table td {
    padding: 1rem;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.compare-table th {
    background: var(--gray-100);
    font-weight: 600;
}

.compare-table th:first-child,
.compare-table td:first-child {
    text-align: left;
    background: var(--gray-50);
    font-weight: 500;
}

.compare-table .product-header {
    background: var(--primary);
    color: var(--white);
    font-size: 1.125rem;
}

.compare-check {
    color: var(--success);
    font-size: 1.25rem;
}

.compare-cross {
    color: var(--gray-400);
    font-size: 1.25rem;
}

/* Guide Section */
.guide {
    background: var(--gray-100);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.guide-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.guide-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.guide-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.guide-card h3 {
    font-size: 1.25rem;
    color: var(--dark);
    margin-bottom: 0.75rem;
}

.guide-card p {
    color: var(--gray-600);
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* SEO Content Section */
.seo-content {
    background: var(--white);
    border-top: 1px solid var(--gray-200);
}

.seo-text {
    max-width: 900px;
    margin: 0 auto;
}

.seo-text h2 {
    font-size: 1.75rem;
    color: var(--dark);
    margin-bottom: 1.5rem;
}

.seo-text h3 {
    font-size: 1.25rem;
    color: var(--dark);
    margin: 2rem 0 1rem;
}

.seo-text p {
    color: var(--gray-700);
    margin-bottom: 1rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--gray-400);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 2rem;
    text-align: center;
}

.affiliate-disclosure {
    font-size: 0.875rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius);
}

.copyright {
    font-size: 0.875rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-visual {
        display: none;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu a {
        font-size: 1.25rem;
    }

    .hero {
        min-height: auto;
        padding: 6rem 0 4rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        justify-content: center;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .quiz-options {
        grid-template-columns: 1fr;
    }

    .quiz-options.multi {
        grid-template-columns: 1fr;
    }

    .compare-selector {
        grid-template-columns: 1fr;
    }

    .guide-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 3rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .btn {
        width: 100%;
    }

    .filter-tabs {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .hero-visual,
    .quiz,
    .compare,
    .footer {
        display: none;
    }

    .section {
        padding: 1rem 0;
    }
}