/* ========================================
   CSS Variables & Neo Brutalism Design
   ======================================== */
:root {
    --color-primary: #ff6b35;
    --color-secondary: #004e89;
    --color-accent: #2ec4b6;
    --color-dark: #1a1a2e;
    --color-dark-alt: #16213e;
    --color-light: #f5f5f5;
    --color-white: #ffffff;
    --color-black: #000000;
    --border-thick: 4px;
    --shadow-solid: 8px 8px 0px 0px var(--color-dark);
    --shadow-solid-hover: 12px 12px 0px 0px var(--color-dark);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --z-header: 1000;
    --z-modal: 10000;
    --z-toast: 999999;
    --safe-area-inset-top: env(safe-area-inset-top, 0px);
    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-inset-left: env(safe-area-inset-left, 0px);
    --safe-area-inset-right: env(safe-area-inset-right, 0px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    background: var(--color-light);
    color: var(--color-dark);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    background-image: 
        linear-gradient(rgba(0,78,137,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,78,137,0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: -1px -1px;
    padding-top: var(--safe-area-inset-top);
    padding-bottom: var(--safe-area-inset-bottom);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   Typography
   ======================================== */
.highlight {
    color: var(--color-primary);
}

.section-title {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: #666;
    margin-bottom: 3rem;
}

/* ========================================
   Mobile Menu Toggle
   ======================================== */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    border: var(--border-thick) solid var(--color-dark);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
    letter-spacing: 0.02em;
    position: relative;
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
    text-align: center;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-solid);
}

.btn-primary:hover {
    transform: translate(-4px, -4px);
    box-shadow: var(--shadow-solid-hover);
}

.btn-primary:active {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0px 0px var(--color-dark);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-dark);
    box-shadow: var(--shadow-solid);
}

.btn-secondary:hover {
    transform: translate(-4px, -4px);
    box-shadow: var(--shadow-solid-hover);
    background: var(--color-light);
}

.btn-secondary:active {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0px 0px var(--color-dark);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   Header
   ======================================== */
.header {
    background: var(--color-white);
    border-bottom: var(--border-thick) solid var(--color-dark);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    box-shadow: 0 4px 0 0 var(--color-dark);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 48px;
    height: 48px;
    filter: drop-shadow(2px 2px 0 var(--color-dark));
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav a {
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 700;
    font-size: 1rem;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    padding-bottom: 4px;
}

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

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: 60px 0;
    background: var(--color-white);
    border-bottom: var(--border-thick) solid var(--color-dark);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.hero-description {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: #444;
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-background {
    width: 100%;
    height: 300px;
    background-image: 
        linear-gradient(var(--color-primary) 2px, transparent 2px),
        linear-gradient(90deg, var(--color-primary) 2px, transparent 2px);
    background-size: 40px 40px;
    background-position: -1px -1px;
    opacity: 0.15;
    border: var(--border-thick) solid var(--color-dark);
    position: relative;
}

.hero-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 12px 24px;
    border: var(--border-thick) solid var(--color-dark);
    box-shadow: var(--shadow-solid);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
}

.badge-icon {
    font-size: 1.5rem;
}

/* ========================================
   Products Section
   ======================================== */
.products {
    padding: 60px 0;
    background: var(--color-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--color-white);
    border: var(--border-thick) solid var(--color-dark);
    box-shadow: var(--shadow-solid);
    padding: 28px;
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translate(-4px, -4px);
    box-shadow: var(--shadow-solid-hover);
}

.product-card:active {
    transform: translate(-2px, -2px);
}

.product-card.coming-soon {
    opacity: 0.7;
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 4px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid var(--color-dark);
}

.product-badge.available {
    background: var(--color-primary);
}

.product-name {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.product-price {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 900;
    color: var(--color-primary);
    margin: 16px 0;
}

.product-price span {
    font-size: 1rem;
    font-weight: 400;
    color: #666;
}

.product-description {
    color: #555;
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.product-actions .btn {
    flex: 1;
    text-align: center;
    padding: 12px 20px;
    font-size: 0.9rem;
}

/* ========================================
   Order Section
   ======================================== */
.order-section {
    padding: 60px 0;
    background: var(--color-white);
    border-top: var(--border-thick) solid var(--color-dark);
}

.order-lookup {
    max-width: 600px;
    margin: 0 auto 40px;
}

.order-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--color-light);
    padding: 24px;
    border: var(--border-thick) solid var(--color-dark);
    box-shadow: var(--shadow-solid);
}

.order-form .form-group {
    width: 100%;
}

.order-form .form-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.order-form .form-actions .btn {
    flex: 1;
    min-width: 120px;
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 3px solid var(--color-dark);
    font-size: 1rem;
    font-family: var(--font-primary);
    background: var(--color-white);
    transition: var(--transition);
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
}

.form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary);
}

.form-group input::placeholder {
    color: #aaa;
}

.order-results {
    max-width: 800px;
    margin: 0 auto;
}

.order-item {
    background: var(--color-white);
    border: var(--border-thick) solid var(--color-dark);
    box-shadow: var(--shadow-solid);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 0;
    transition: var(--transition);
    word-break: break-word;
    overflow-wrap: break-word;
}

.order-item:hover {
    transform: translate(-3px, -3px);
    box-shadow: var(--shadow-solid-hover);
}

.order-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 3px dashed var(--color-dark);
    padding-bottom: 10px;
}

.order-ref {
    font-weight: 800;
    font-size: clamp(0.85rem, 3vw, 1.1rem);
    color: var(--color-secondary);
}

.badge {
    padding: 4px 12px;
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid var(--color-dark);
}

.badge.pending {
    background: #ffd700;
}

.badge.completed {
    background: var(--color-accent);
    color: var(--color-white);
}

.badge.failed {
    background: #ff6b6b;
    color: var(--color-white);
}

.order-details p {
    margin: 6px 0;
    font-size: 0.95rem;
}

.order-status-box {
    margin-top: 15px;
    padding: 12px 15px;
    background: var(--color-light);
    border-left: 5px solid var(--color-primary);
    border-radius: 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: 60px 0;
    background: var(--color-dark-alt);
    color: var(--color-white);
    border-top: var(--border-thick) solid var(--color-primary);
}

.about .section-title {
    color: var(--color-white);
}

.about .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.about-card {
    background: rgba(255,255,255,0.05);
    padding: 28px;
    border: var(--border-thick) solid rgba(255,255,255,0.2);
    transition: var(--transition);
    text-align: center;
}

.about-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
}

.about-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.about-card p {
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-dark);
    color: rgba(255,255,255,0.7);
    padding: 40px 0;
    border-top: var(--border-thick) solid var(--color-primary);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 30px;
}

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

.footer-brand p {
    margin-top: 8px;
    font-size: 0.875rem;
}

.footer h4 {
    color: var(--color-white);
    font-weight: 800;
    margin-bottom: 16px;
    font-size: 1rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 8px;
}

.footer a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

/* ========================================
   Toast Notification
   ======================================== */
.toast {
    position: fixed;
    top: calc(24px + var(--safe-area-inset-top));
    right: calc(24px + var(--safe-area-inset-right));
    background: var(--color-dark);
    color: var(--color-white);
    padding: 16px 24px;
    border: var(--border-thick) solid var(--color-white);
    box-shadow: var(--shadow-solid);
    z-index: 999999 !important;
    max-width: 420px;
    min-width: 280px;
    animation: slideInRight 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    font-weight: 600;
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    line-height: 1.5;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
}

.toast.success {
    border-color: var(--color-accent);
    background: #0a2e2a;
}

.toast.error {
    border-color: #ff6b6b;
    background: #2a0a0a;
}

.toast.info {
    border-color: #4a9eff;
    background: #0a1a2a;
}

.toast.warning {
    border-color: #ffd700;
    background: #2a2a0a;
}

.toast.hiding {
    animation: slideOutRight 0.3s ease-in forwards;
}

@keyframes slideInRight {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(120%);
        opacity: 0;
    }
}

/* ========================================
   Modal Overlay
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal-container {
    background: var(--color-white);
    border: var(--border-thick) solid var(--color-dark);
    box-shadow: var(--shadow-solid);
    max-width: 480px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
    -webkit-overflow-scrolling: touch;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-40px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: var(--border-thick) solid var(--color-dark);
    background: var(--color-light);
}

.modal-header h2 {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    font-weight: 800;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-dark);
    padding: 0 8px;
    transition: var(--transition);
    font-weight: 300;
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-primary);
    transform: scale(1.1);
}

.modal-close:active {
    transform: scale(0.9);
}

.modal-body {
    padding: 24px;
}

.modal-product-info {
    background: var(--color-light);
    padding: 16px;
    border: 3px solid var(--color-dark);
    margin-bottom: 20px;
    text-align: center;
}

.modal-product-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #666;
    font-weight: 700;
    margin-bottom: 4px;
}

.modal-product-name {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-dark);
}

.modal-product-price {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-primary);
}

.modal-form-group {
    margin-bottom: 20px;
}

.modal-form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: 8px;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 3px solid var(--color-dark);
    font-size: 1rem;
    font-family: var(--font-primary);
    background: var(--color-white);
    transition: var(--transition);
    -webkit-appearance: none;
    appearance: none;
    border-radius: 0;
}

.modal-form-group input:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary);
}

.modal-hint {
    font-size: 0.8rem;
    color: #888;
    margin-top: 8px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-actions .btn {
    flex: 1;
    text-align: center;
    padding: 14px 24px;
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
}

.verify-instructions {
    background: #e8f4fd;
    padding: 12px;
    border: 3px solid #004e89;
    margin-bottom: 20px;
    text-align: left;
    border-radius: 0;
}

.verify-instructions p {
    font-size: 0.9rem;
    color: #004e89;
    margin: 0;
}

/* ========================================
   QR Code Modal
   ======================================== */
.qr-container {
    text-align: center;
}

#qr-code-display {
    background: white;
    padding: 20px;
    border: 3px solid var(--color-dark);
    display: inline-block;
    margin: 0 auto 16px;
    min-height: 200px;
    min-width: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#qr-code-display canvas {
    max-width: 100%;
    height: auto;
}

#qr-code-display img {
    max-width: 100%;
    height: auto;
}

.qr-instructions {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.qr-details {
    background: var(--color-light);
    padding: 16px;
    border: 3px solid var(--color-dark);
    text-align: left;
    margin-bottom: 16px;
}

.qr-details p {
    margin: 4px 0;
    font-size: clamp(0.85rem, 1.1vw, 0.95rem);
}

.qr-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.qr-actions .btn {
    flex: 1;
    min-width: 120px;
}

#qr-status {
    font-weight: 700;
    padding: 4px 8px;
}

#qr-status.pending {
    color: #e67e22;
}

#qr-status.completed {
    color: var(--color-accent);
}

#qr-status.failed {
    color: #ff6b6b;
}

/* Cancel Modal */
#cancel-confirm-modal .modal-container {
    border-color: #ff6b6b;
}

#cancel-confirm-modal .modal-header {
    border-bottom-color: #ff6b6b;
    background: #fff5f5;
}

#cancel-confirm-modal .btn-primary {
    background: #ff6b6b;
    border-color: #ff6b6b;
    color: white;
}

#cancel-confirm-modal .btn-primary:hover {
    background: #e55a5a;
    border-color: #e55a5a;
}

/* ========================================
   Loading & Error States
   ======================================== */
.loading {
    text-align: center;
    padding: 40px;
    font-weight: 700;
    font-size: 1.2rem;
}

.error-message {
    background: #fee;
    color: #c0392b;
    padding: 16px 24px;
    border: var(--border-thick) solid #c0392b;
    margin: 16px 0;
    font-weight: 600;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

/* Tablet & Smaller Laptops */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-image {
        min-height: 250px;
    }
    .grid-background {
        height: 250px;
    }
}

/* Mobile & Tablets */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    .mobile-menu-toggle {
        display: flex;
    }
    .nav {
        display: none;
        width: 100%;
        padding-top: 16px;
        border-top: 3px solid var(--color-light);
    }
    .nav.active {
        display: block;
    }
    .nav ul {
        flex-direction: column;
        gap: 12px;
    }
    .nav a {
        display: block;
        padding: 10px 0;
        font-size: 1.1rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .order-form {
        padding: 16px;
    }
    .order-form .form-actions {
        flex-direction: column;
    }
    .order-form .form-actions .btn {
        width: 100%;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .hero-actions .btn {
        width: 100%;
        text-align: center;
    }
    .about-grid {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .modal-container {
        margin: 10px;
        max-height: 95vh;
    }
    .modal-header {
        padding: 16px;
    }
    .modal-body {
        padding: 16px;
    }
    .modal-actions {
        flex-direction: column;
    }
    .modal-actions .btn {
        width: 100%;
    }
    .qr-actions {
        flex-direction: column;
    }
    .qr-actions .btn {
        width: 100%;
    }
    .hero-badge {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
    .badge-icon {
        font-size: 1.2rem;
    }
    .product-card {
        padding: 20px;
    }
    .product-price {
        font-size: 1.5rem;
    }
    .order-item-header {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    .hero {
        padding: 40px 0;
    }
    .products {
        padding: 40px 0;
    }
    .order-section {
        padding: 40px 0;
    }
    .about {
        padding: 40px 0;
    }
    .product-card {
        padding: 16px;
    }
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    .logo-text {
        font-size: 1.2rem;
    }
    .logo img {
        width: 40px;
        height: 40px;
    }
    .hero-title {
        font-size: 1.8rem;
    }
    .modal-container {
        margin: 8px;
    }
    .modal-product-price {
        font-size: 1.3rem;
    }
    .qr-details p {
        font-size: 0.8rem;
    }
    #qr-code-display {
        min-height: 150px;
        min-width: 150px;
        padding: 12px;
    }
    #qr-code-display canvas {
        max-width: 180px;
    }
    .order-item {
        padding: 12px 16px;
    }
    .order-ref {
        font-size: 0.85rem;
    }
    .toast {
        top: 12px;
        right: 12px;
        left: 12px;
        max-width: none;
        min-width: auto;
        padding: 12px 16px;
        font-size: 0.85rem;
    }
    .toast-icon {
        font-size: 1.2rem;
    }
}

/* iOS Specific Fixes */
@supports (-webkit-touch-callout: none) {
    .modal-overlay {
        padding-bottom: calc(20px + var(--safe-area-inset-bottom));
    }
    .toast {
        padding-top: calc(16px + var(--safe-area-inset-top));
        padding-bottom: calc(16px + var(--safe-area-inset-bottom));
    }
    input, select, textarea {
        font-size: 16px !important;
    }
}

/* Android Specific Fixes */
@supports (-webkit-appearance: none) and (not (overflow: -webkit-marquee)) {
    input, select, textarea {
        border-radius: 0;
    }
}

/* ========================================
   Dark Mode Support
   ======================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --color-light: #1a1a2e;
        --color-white: #1a1a2e;
        --color-dark: #f5f5f5;
    }
    body {
        background: var(--color-light);
        color: var(--color-white);
    }
    .header {
        background: #16213e;
        border-bottom-color: #f5f5f5;
    }
    .logo-text {
        color: var(--color-white);
    }
    .nav a {
        color: var(--color-white);
    }
    .hero {
        background: #16213e;
        border-bottom-color: #f5f5f5;
    }
    .hero-description {
        color: #bbb;
    }
    .product-card {
        background: #1a1a2e;
        border-color: #f5f5f5;
    }
    .product-name {
        color: var(--color-white);
    }
    .product-description {
        color: #aaa;
    }
    .order-section {
        background: #16213e;
        border-top-color: #f5f5f5;
    }
    .order-form {
        background: #1a1a2e;
        border-color: #f5f5f5;
    }
    .form-group input {
        background: #1a1a2e;
        color: var(--color-white);
        border-color: #f5f5f5;
    }
    .order-item {
        background: #1a1a2e;
        border-color: #f5f5f5;
    }
    .order-item-header {
        border-bottom-color: rgba(255,255,255,0.2);
    }
    .order-details p {
        color: #ccc;
    }
    .order-status-box {
        background: #16213e;
    }
    .modal-container {
        background: #1a1a2e;
        border-color: #f5f5f5;
    }
    .modal-header {
        background: #16213e;
        border-bottom-color: #f5f5f5;
    }
    .modal-header h2 {
        color: var(--color-white);
    }
    .modal-close {
        color: var(--color-white);
    }
    .modal-product-info {
        background: #16213e;
        border-color: #f5f5f5;
    }
    .modal-product-name {
        color: var(--color-white);
    }
    .modal-form-group input {
        background: #1a1a2e;
        color: var(--color-white);
        border-color: #f5f5f5;
    }
    .qr-details {
        background: #16213e;
        border-color: #f5f5f5;
    }
    .qr-details p {
        color: var(--color-white);
    }
    .error-message {
        background: #2a0a0a;
        color: #ff6b6b;
        border-color: #ff6b6b;
    }
    .verify-instructions {
        background: #0a1a2a;
        border-color: #4a9eff;
    }
    .verify-instructions p {
        color: #4a9eff;
    }
    .btn-secondary {
        background: #1a1a2e;
        color: var(--color-white);
        border-color: var(--color-white);
    }
    .btn-secondary:hover {
        background: #2a2a4e;
    }
    .badge {
        border-color: var(--color-white);
    }
    .badge.pending {
        background: #8a7500;
        color: white;
    }
    .badge.completed {
        background: #1a6b60;
        color: white;
    }
    .badge.failed {
        background: #6b1a1a;
        color: white;
    }
}