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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #000000;
}

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

/* Header & Navigation */
header {
    background-color: #0a0a0a;
    border-bottom: 1px solid #1a1a1a;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease, visibility 0.3s ease;
}

header.header-hidden {
    transform: translateY(-100%);
    visibility: hidden;
}

body.capstone-page-active > header {
    display: none;
}

.navbar {
    padding: 1rem 0;
}

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

.logo-link {
    display: block;
    line-height: 0;
}

.logo {
    height: 80px;
    width: auto;
    display: block;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    margin-left: auto;
}

.nav-links a {
    text-decoration: none;
    color: #cccccc;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #E2B232;
}

.cart-link a {
    background-color: #E2B232;
    color: #000000;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.cart-link a:hover {
    background-color: #f0c652;
    box-shadow: 0 2px 8px rgba(226, 178, 50, 0.4);
}

/* Main Content */
#app-content {
    min-height: 70vh;
    padding: 3rem 0;
}

.page {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Page Headings */
.container h1,
.container h2 {
    color: #E2B232;
    margin-bottom: 1.5rem;
}

.container h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
}

/* Loading & Error States */
.loading,
.error {
    text-align: center;
    padding: 3rem;
    color: #cccccc;
    background: #0a0a0a;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    margin: 2rem auto;
}

.error {
    color: #ff6b6b;
    border-color: #dc2626;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    color: white;
    padding: 5rem 2rem;
    text-align: center;
    border-radius: 12px;
    margin-bottom: 3rem;
    border: 1px solid #2a2a2a;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: #E2B232;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.8;
    color: #cccccc;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    background: #0a0a0a;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #2a2a2a;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(226, 178, 50, 0.2);
    border-color: #E2B232;
}

.product-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
}

.product-info {
    padding: 1.8rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.product-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: #ffffff;
}

.product-description {
    font-size: 0.9rem;
    color: #999999;
    margin-bottom: 1.2rem;
    line-height: 1.6;
    flex-grow: 1;
}

.product-price {
    font-size: 1.6rem;
    font-weight: 700;
    color: #E2B232;
    margin-bottom: 1.5rem;
}

.product-actions {
    display: flex;
    gap: 0.8rem;
    align-items: center;
    margin-top: auto;
}

.quantity-input {
    width: 70px;
    padding: 0.6rem;
    border: 1px solid #2a2a2a;
    border-radius: 6px;
    text-align: center;
    font-weight: 500;
    transition: border-color 0.3s ease;
    background-color: #1a1a1a;
    color: #ffffff;
}

.quantity-input:focus {
    outline: none;
    border-color: #E2B232;
    box-shadow: 0 0 0 3px rgba(226, 178, 50, 0.1);
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: #E2B232;
    color: #000000;
    flex-grow: 1;
}

.btn-primary:hover {
    background-color: #f0c652;
    box-shadow: 0 4px 12px rgba(226, 178, 50, 0.4);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-danger {
    background-color: #dc2626;
    color: white;
    padding: 0.5rem 0.8rem;
    font-size: 0.85rem;
    white-space: nowrap;
}

.btn-danger:hover {
    background-color: #b91c1c;
    box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

/* Cart Page */
.cart-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 2rem;
    margin-top: 2rem;
}

.cart-items {
    background: #0a0a0a;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    padding: 2rem;
}

.cart-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid #1a1a1a;
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
}

.cart-item-details {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.5rem;
}

.cart-item-price {
    color: #E2B232;
    font-weight: 600;
    margin-bottom: 1rem;
}

.cart-item-controls {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.cart-summary {
    background: #0a0a0a;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
    padding: 2rem;
    height: fit-content;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.2rem;
    color: #cccccc;
    font-weight: 500;
}

.summary-total {
    font-size: 1.6rem;
    font-weight: 700;
    color: #E2B232;
    border-top: 2px solid #1a1a1a;
    padding-top: 1.5rem;
    margin-bottom: 1.5rem;
}

.empty-message {
    text-align: center;
    padding: 3rem;
    color: #999999;
    background: #0a0a0a;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
}

.empty-message a {
    color: #E2B232;
    font-weight: 600;
    text-decoration: none;
}

.empty-message a:hover {
    color: #f0c652;
}

/* Content Pages */
.content-page {
    max-width: 800px;
    margin: 0 auto;
    background: #0a0a0a;
    padding: 3rem;
    border-radius: 10px;
    border: 1px solid #2a2a2a;
}

.content-page h1 {
    margin-bottom: 1.5rem;
    color: #E2B232;
    font-size: 2rem;
    font-weight: 700;
}

.content-page h3 {
    margin-bottom: 1rem;
    color: #E2B232;
    font-size: 1.3rem;
    font-weight: 600;
}

.content-page p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #cccccc;
    font-size: 1rem;
}

.content-page strong {
    color: #ffffff;
}

/* Product Detail Page */
.product-detail-container {
    max-width: 1200px;
    margin: 0 auto;
}

.breadcrumb {
    margin-bottom: 2rem;
}

.breadcrumb a {
    color: #E2B232;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #f0c652;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    background: #0a0a0a;
    border-radius: 12px;
    border: 1px solid #2a2a2a;
    padding: 3rem;
}

.product-detail-image-container {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
    border-radius: 10px;
    padding: 2rem;
}

.product-detail-image {
    width: 100%;
    max-width: 500px;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

.product-detail-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.product-detail-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: #E2B232;
    margin: 0;
    line-height: 1.2;
}

.product-detail-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: #ffffff;
}

.product-detail-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #cccccc;
}

.product-detail-description p {
    margin: 0 0 1rem;
}

.product-detail-description p:last-child {
    margin-bottom: 0;
}

.product-detail-actions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: auto;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.quantity-selector label {
    font-weight: 600;
    color: #ffffff;
    font-size: 1rem;
}

.product-detail-actions .quantity-input {
    width: 100px;
}

.product-detail-actions .btn {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
        row-gap: 0.8rem;
    }

    .logo {
        height: 56px;
    }

    .nav-links {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .cart-link {
        margin-left: auto;
    }

    .cart-link a {
        padding: 0.5rem 0.9rem;
        white-space: nowrap;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero {
        padding: 3rem 1.5rem;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 1.5rem;
    }

    .cart-container {
        grid-template-columns: 1fr;
    }

    .cart-summary {
        height: auto;
    }

    .content-page {
        padding: 2rem;
    }

    .content-page h1 {
        font-size: 1.5rem;
    }

    /* Product Detail Responsive */
    .product-detail-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }

    .product-detail-title {
        font-size: 1.8rem;
    }

    .product-detail-price {
        font-size: 2rem;
    }

    .product-detail-description {
        font-size: 1rem;
    }

    .product-detail-actions .btn {
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 420px) {
    .container {
        padding: 0 14px;
    }

    .logo {
        height: 48px;
    }

    .nav-links {
        justify-content: center;
        gap: 0.6rem 0.9rem;
    }

    .nav-links a {
        font-size: 0.85rem;
    }

    .cart-link {
        width: 100%;
        display: flex;
        justify-content: center;
        margin-left: 0;
    }
}

/* Notification Toast */
.notification {
    position: fixed;
    bottom: 20px;
    left: 20px;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    z-index: 10000;
    opacity: 0;
    transform: translateX(-400px);
    transition: all 0.3s ease;
    max-width: 400px;
}

.notification-show {
    opacity: 1;
    transform: translateX(0);
}

.notification-success {
    background-color: #1a5e1a;
    color: #ffffff;
    border-left: 4px solid #E2B232;
}

.notification-error {
    background-color: #5e1a1a;
    color: #ffffff;
    border-left: 4px solid #ff4444;
}

.notification-info {
    background-color: #1a3a5e;
    color: #ffffff;
    border-left: 4px solid #4488ff;
}

/* ElectroVia Capstone mock application */
.electrovia-mock {
    max-width: 1100px;
    margin: 2rem auto;
    overflow: hidden;
    border: 1px solid #d8e0e8;
    border-radius: 14px;
    color: #172638;
    background: #f4f7fa;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
    font-family: "Segoe UI", Arial, sans-serif;
}

.electrovia-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.75rem;
    color: #ffffff;
    background: #132a3e;
}

.electrovia-header > div {
    display: flex;
    align-items: baseline;
    gap: 0.8rem;
}

.electrovia-kicker,
.electrovia-label,
.electrovia-eyebrow {
    color: #5cd6c0;
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.12em;
}

.electrovia-header strong {
    font-size: 1rem;
    letter-spacing: 0.02em;
}

.electrovia-language {
    padding: 0.35rem 0.6rem;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 5px;
    color: #dce9f0;
    font-size: 0.75rem;
    font-weight: 700;
}

.electrovia-content {
    padding: 2rem;
}

.electrovia-welcome {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.electrovia-welcome h3,
.electrovia-panel h4 {
    margin: 0.35rem 0;
    color: #172638;
}

.electrovia-welcome h3 {
    font-size: 1.65rem;
}

.electrovia-welcome p {
    max-width: 560px;
    margin: 0;
    color: #617487;
    font-size: 0.95rem;
}

.electrovia-support-status {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid #c7e9df;
    border-radius: 999px;
    color: #277c6c;
    background: #e7f8f3;
    font-size: 0.75rem;
    font-weight: 700;
    white-space: nowrap;
}

.electrovia-support-status span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #2bb897;
}

.electrovia-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(250px, 0.8fr);
    gap: 1rem;
}

.electrovia-panel {
    padding: 1.35rem;
    border: 1px solid #dce4eb;
    border-radius: 10px;
    background: #ffffff;
}

.electrovia-panel-heading,
.electrovia-product,
.electrovia-help-item {
    display: flex;
    align-items: center;
}

.electrovia-panel-heading {
    justify-content: space-between;
    gap: 1rem;
}

.electrovia-panel h4 {
    font-size: 1.25rem;
}

.electrovia-order-status {
    padding: 0.35rem 0.6rem;
    border-radius: 5px;
    color: #24755f;
    background: #e3f6ed;
    font-size: 0.75rem;
    font-weight: 800;
}

.electrovia-product {
    gap: 0.8rem;
    margin: 1.25rem 0;
    padding: 0.85rem 0;
    border-top: 1px solid #edf1f4;
    border-bottom: 1px solid #edf1f4;
}

.electrovia-product > div:nth-child(2) {
    display: flex;
    flex: 1;
    flex-direction: column;
    gap: 0.15rem;
}

.electrovia-product span {
    color: #718294;
    font-size: 0.8rem;
}

.electrovia-product-image {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 8px;
    color: #ffffff;
    background: #274f70;
    font-size: 1.6rem;
}

.electrovia-progress {
    position: relative;
    display: flex;
    justify-content: space-between;
    margin: 1.5rem 0;
}

.electrovia-progress-line {
    position: absolute;
    top: 12px;
    left: 8%;
    right: 8%;
    height: 2px;
    background: #d7e0e7;
}

.electrovia-progress-line span {
    display: block;
    width: 68%;
    height: 100%;
    background: #42bda4;
}

.electrovia-progress-step {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    color: #748596;
    font-size: 0.72rem;
}

.electrovia-progress-step b {
    display: grid;
    width: 25px;
    height: 25px;
    place-items: center;
    border: 2px solid #d7e0e7;
    border-radius: 50%;
    color: #748596;
    background: #ffffff;
    font-size: 0.7rem;
}

.electrovia-progress-step small {
    color: #9aa8b4;
    font-size: 0.68rem;
}

.electrovia-step-done {
    color: #2a7868;
}

.electrovia-step-done b {
    border-color: #42bda4;
    color: #ffffff;
    background: #42bda4;
}

.electrovia-button {
    border: 0;
    border-radius: 5px;
    cursor: pointer;
    font: inherit;
    font-size: 0.82rem;
    font-weight: 800;
}

.electrovia-button-primary {
    padding: 0.75rem 1rem;
    color: #ffffff;
    background: #173b59;
}

.electrovia-button-primary span {
    margin-left: 0.5rem;
    color: #5cd6c0;
}

.electrovia-help-panel h4 {
    margin-bottom: 1rem;
}

.electrovia-faq-panel {
    min-width: 0;
}

.capstone-brief-panel {
    min-width: 0;
}

.capstone-brief-content {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 1rem;
    color: #617487;
    font-size: 0.82rem;
    line-height: 1.6;
}

.capstone-brief-content p {
    margin: 0.25rem 0 0;
}

.capstone-brief-content h5 {
    margin: 0.35rem 0 0;
    color: #172638;
    font-size: 0.95rem;
}

.capstone-brief-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    padding: 0.9rem 0;
    border-top: 1px solid #edf1f4;
    border-bottom: 1px solid #edf1f4;
}

.capstone-brief-callout {
    padding: 0.75rem 0.9rem;
    border-left: 3px solid #42bda4;
    border-radius: 0 5px 5px 0;
    background: #eaf8f4;
}

.capstone-brief-callout strong {
    color: #277c6c;
}

.electrovia-faq-list {
    margin-top: 1rem;
    border-top: 1px solid #edf1f4;
}

.electrovia-faq-list details {
    border-bottom: 1px solid #edf1f4;
}

.electrovia-faq-list summary {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 0;
    cursor: pointer;
    color: #344b60;
    font-size: 0.86rem;
    font-weight: 700;
    list-style: none;
}

.electrovia-faq-list summary::-webkit-details-marker {
    display: none;
}

.electrovia-faq-list summary::after {
    flex: 0 0 auto;
    color: #299c8a;
    content: '+';
    font-size: 1.15rem;
    line-height: 1;
}

.electrovia-faq-list details[open] summary::after {
    content: '−';
}

.electrovia-faq-list p {
    padding: 0 1.5rem 1rem 0;
    color: #617487;
    font-size: 0.8rem;
    line-height: 1.65;
}

.electrovia-help-item {
    width: 100%;
    justify-content: flex-start;
    gap: 0.7rem;
    padding: 0.8rem 0;
    border: 0;
    border-top: 1px solid #edf1f4;
    color: #344b60;
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-size: 0.85rem;
    text-align: left;
}

.electrovia-help-item span {
    color: #299c8a;
    font-size: 1.15rem;
}

.electrovia-help-item b {
    margin-left: auto;
    color: #299c8a;
}

.electrovia-footer-note {
    margin-top: 1rem;
    color: #667b8d;
    font-size: 0.78rem;
    text-align: center;
}

.electrovia-footer-note span {
    color: #299c8a;
}

@media (max-width: 700px) {
    .electrovia-content {
        padding: 1rem;
    }

    .electrovia-welcome,
    .electrovia-grid {
        display: block;
    }

    .electrovia-support-status {
        display: inline-flex;
        margin-top: 1rem;
    }

    .electrovia-help-panel {
        margin-top: 1rem;
    }

    .capstone-brief-grid {
        grid-template-columns: 1fr;
    }
}