/* ======================
   Header Styles
====================== */
header {
    background-color: #1a1a1a;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 100;
}

.header-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 1.5rem 0 0.75rem;
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    color: #ff8c00;
    z-index: 101;
    text-decoration: none;
}

.logo-image {
    width: 236px;
    max-width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 10px 22px rgba(255, 140, 0, 0.2));
    transition: transform 0.2s ease, filter 0.2s ease;
}

/* Core nav: shared by desktop and mobile */
.nav {
    transition: all 0.3s ease;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-list a {
    color: #ffffff;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #ff8c00;
    transition: width 0.3s ease;
}

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

.nav-list a.active {
    color: #ffb05a;
}

.nav-list a.active::after {
    width: 100%;
}

.nav-dropdown {
    position: relative;
}

.nav-submenu {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    min-width: 170px;
    background: #1f1f1f;
    border: 1px solid rgba(255, 140, 0, 0.25);
    border-radius: 10px;
    padding: 0.45rem 0;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
    opacity: 0;
    pointer-events: none;
    transform: translateY(6px);
    transition: all 0.2s ease;
    z-index: 120;
}

.nav-submenu li {
    width: 100%;
}

.nav-submenu a {
    display: block;
    padding: 0.48rem 0.8rem;
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-dropdown:hover .nav-submenu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* Mobile menu button */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 101;
}

body.nav-open {
    overflow: hidden;
}

/* Header icons */
.header-icons {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    z-index: 101;
}

.header-icons a {
    color: #ffffff;
    font-size: 1.1rem;
}

.header-icons a:hover,
.logo:hover .logo-image {
    filter: drop-shadow(0 14px 26px rgba(255, 140, 0, 0.3));
    transform: translateY(-1px);
}

.mobile-bottom-nav {
    display: none;
}

/* ======================
   Shared Components
====================== */
/* Button tokens */
:root {
    --btn-radius: 16px;
    --btn-font-size: 0.94rem;
    --btn-font-weight: 700;
    --btn-padding-y: 0.72rem;
    --btn-padding-x: 1.18rem;
    --btn-primary-bg: linear-gradient(135deg, #ffc56f 0%, #ff9635 48%, #f05a24 100%);
    --btn-primary-border: rgba(255, 198, 112, 0.45);
    --btn-primary-color: #18120d;
    --btn-secondary-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
    --btn-secondary-border: rgba(255, 255, 255, 0.14);
    --btn-secondary-color: #f5ede3;
    --btn-danger-bg: linear-gradient(135deg, rgba(255, 116, 98, 0.24), rgba(169, 34, 34, 0.18));
    --btn-danger-border: rgba(255, 116, 98, 0.36);
    --btn-danger-color: #ffd7d1;
    --btn-shadow-soft: 0 14px 32px rgba(0, 0, 0, 0.18);
    --btn-shadow-strong: 0 18px 38px rgba(255, 114, 36, 0.22);
    --btn-focus-ring: 0 0 0 3px rgba(255, 181, 92, 0.18);
}

/* Buttons */
body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
) {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 44px;
    padding: var(--btn-padding-y) var(--btn-padding-x);
    border: 1px solid transparent;
    border-radius: var(--btn-radius);
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-color);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    font-size: var(--btn-font-size);
    font-weight: var(--btn-font-weight);
    letter-spacing: 0.02em;
    line-height: 1.1;
    white-space: nowrap;
    box-shadow: var(--btn-shadow-soft), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        border-color 0.18s ease,
        background 0.18s ease,
        color 0.18s ease,
        filter 0.18s ease;
    -webkit-tap-highlight-color: transparent;
}

body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
):hover {
    transform: translateY(-1px);
    filter: brightness(1.03);
}

body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
):active {
    transform: translateY(0);
}

body :is(
    .btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn-primary,
    .search-submit-btn,
    .login-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn:not(.ghost),
    .view-btn,
    .go-shop-btn,
    .confirm-btn:not(.danger),
    .library-empty-btn,
    .chart-btn-primary
) {
    border-color: var(--btn-primary-border);
    background: var(--btn-primary-bg);
    color: var(--btn-primary-color);
    box-shadow: var(--btn-shadow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

body :is(
    .btn-secondary,
    .edit-btn,
    .verification-btn,
    .deals-btn-secondary,
    .shop-record-btn.ghost,
    .secondary-btn,
    .upload-btn,
    .chart-btn-secondary,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
) {
    border-color: var(--btn-secondary-border);
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-color);
}

body :is(
    .order-op-btn,
    .sr-action-btn,
    .offer-buy-link,
    .confirm-btn,
    .verification-btn,
    .news-read-btn
) {
    min-height: 38px;
    padding: 0.62rem 0.96rem;
    border-radius: 999px;
    font-size: 0.87rem;
}

body :is(.login-btn) {
    width: 100%;
}

body :is(.switch-btn) {
    width: 100%;
}

body :is(.search-submit-btn) {
    min-width: 124px;
}

body :is(.verification-btn) {
    min-width: 128px;
}

body :is(.news-read-btn) {
    align-self: flex-start;
}

body .order-op-btn.success,
body .address-actions .order-op-btn[data-action="default"] {
    border-color: rgba(108, 206, 142, 0.34);
    background: linear-gradient(135deg, rgba(38, 92, 56, 0.92), rgba(24, 62, 39, 0.94));
    color: #effff4;
    box-shadow: 0 16px 30px rgba(24, 62, 39, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

body .order-op-btn.danger,
body .address-actions .order-op-btn[data-action="delete"] {
    border-color: rgba(255, 116, 98, 0.34);
    background: linear-gradient(135deg, rgba(98, 34, 34, 0.96), rgba(60, 22, 22, 0.96));
    color: #ffe1dc;
    box-shadow: 0 16px 30px rgba(70, 20, 20, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

body .address-actions .order-op-btn[data-action="edit"] {
    border-color: rgba(255, 198, 112, 0.34);
    background: linear-gradient(135deg, rgba(66, 47, 23, 0.96), rgba(39, 28, 15, 0.96));
    color: #ffe8c2;
    box-shadow: 0 16px 30px rgba(41, 27, 12, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

body :is(.confirm-btn.danger) {
    border-color: var(--btn-danger-border);
    background: var(--btn-danger-bg);
    color: var(--btn-danger-color);
}

body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
):focus-visible {
    outline: none;
    box-shadow: var(--btn-focus-ring), var(--btn-shadow-soft);
}

body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
)[disabled],
body :is(
    .btn,
    .btn-secondary,
    .edit-btn,
    .switch-btn,
    .banner-search-btn,
    .deals-btn,
    .search-submit-btn,
    .login-btn,
    .verification-btn,
    .contact-submit-btn,
    .news-read-btn,
    .shop-record-btn,
    .view-btn,
    .secondary-btn,
    .go-shop-btn,
    .confirm-btn,
    .upload-btn,
    .chart-btn,
    .library-empty-btn,
    .offer-buy-link,
    .sr-action-btn,
    .order-op-btn
).disabled {
    opacity: 0.48;
    cursor: not-allowed;
    transform: none;
    filter: none;
    box-shadow: none;
}

/* Form controls */
.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #cccccc;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: #2a2a2a;
    border: 1px solid #3a3a3a;
    border-radius: 4px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s;
}

.form-control:focus {
    border-color: #ff8c00;
    box-shadow: 0 0 0 3px rgba(255, 140, 0, 0.1);
    background-color: #2f2f2f;
}

/* Checkboxes */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #cccccc;
    cursor: pointer;
}

.custom-checkbox {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    background-color: #2a2a2a;
    border: 1px solid #3a3a3a;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.checkbox-input:checked + .custom-checkbox {
    background-color: #ff8c00;
    border-color: #ff8c00;
}

.checkbox-input:checked + .custom-checkbox::after {
    content: '\2713';
    color: white;
    font-size: 12px;
}

.checkbox-input {
    display: none;
}

/* Tables */
.product-table {
    width: 100%;
    border-collapse: collapse;
    overflow-x: auto;
    display: block;
}

.product-table th,
.product-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #2a2a2a;
}

.product-table th {
    color: #ff8c00;
    white-space: nowrap;
}

/* ======================
   Footer Styles
====================== */
footer {
    background-color: #1a1a1a;
    padding: 2rem 1rem;
    text-align: center;
    color: #cccccc;
    margin-top: 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content p + p {
    margin-top: 0.45rem;
}

.footer-link {
    color: #d9d9d9;
}

.footer-link:hover {
    color: #ffffff;
}

/* ======================
   Responsive Layout
====================== */
/* Mobile: 767px and below */
@media (max-width: 767px) {
    body {
        padding-bottom: calc(74px + env(safe-area-inset-bottom));
    }

    /* Navigation */
    .header-inner {
        flex-wrap: nowrap;
    }

    .menu-toggle {
        display: none;
    }

    .nav {
        display: none;
    }

    .nav.active {
        display: none;
    }

    .nav-backdrop {
        display: none;
    }

    .mobile-bottom-nav {
        position: fixed;
        right: 0;
        bottom: 0;
        left: 0;
        z-index: 1000;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
        gap: 0;
        min-height: calc(64px + env(safe-area-inset-bottom));
        padding: 0.42rem max(0.55rem, env(safe-area-inset-left)) calc(0.42rem + env(safe-area-inset-bottom)) max(0.55rem, env(safe-area-inset-right));
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        background: rgba(18, 18, 18, 0.96);
        box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.28);
        backdrop-filter: blur(18px);
        box-sizing: border-box;
    }

    .mobile-bottom-nav-item {
        display: flex;
        min-width: 0;
        min-height: 50px;
        align-items: center;
        justify-content: center;
        flex-direction: column;
        gap: 0.2rem;
        border-radius: 14px;
        color: rgba(255, 234, 208, 0.64);
        font-size: 0.68rem;
        line-height: 1.2;
        text-align: center;
        text-decoration: none;
        -webkit-tap-highlight-color: transparent;
    }

    .mobile-bottom-nav-item i {
        font-size: 1rem;
        line-height: 1;
    }

    .mobile-bottom-nav-item span {
        display: block;
        max-width: 100%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .mobile-bottom-nav-item.active {
        background: rgba(255, 140, 0, 0.12);
        color: #ffd7a6;
    }

    .mobile-bottom-nav-item:active {
        background: rgba(255, 255, 255, 0.06);
    }

    .mobile-bottom-nav-more {
        position: relative;
        min-width: 0;
    }

    .mobile-bottom-nav-more summary {
        list-style: none;
        cursor: pointer;
    }

    .mobile-bottom-nav-more summary::-webkit-details-marker {
        display: none;
    }

    .mobile-bottom-nav-more[open] > summary {
        background: rgba(255, 140, 0, 0.12);
        color: #ffd7a6;
    }

    .mobile-bottom-nav-menu {
        position: absolute;
        right: 0;
        bottom: calc(100% + 0.55rem);
        display: grid;
        min-width: 138px;
        padding: 0.45rem;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 16px;
        background: rgba(18, 18, 18, 0.98);
        box-shadow: 0 -12px 28px rgba(0, 0, 0, 0.28);
        backdrop-filter: blur(18px);
    }

    .mobile-bottom-nav-menu a {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        min-height: 40px;
        padding: 0 0.7rem;
        border-radius: 12px;
        color: rgba(255, 234, 208, 0.72);
        font-size: 0.82rem;
        line-height: 1.2;
        text-decoration: none;
        white-space: nowrap;
    }

    .mobile-bottom-nav-menu a i {
        width: 1rem;
        color: rgba(255, 214, 165, 0.7);
        text-align: center;
    }

    .mobile-bottom-nav-menu a.active {
        background: rgba(255, 140, 0, 0.12);
        color: #ffd7a6;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
        padding: 0;
    }

    .nav-dropdown {
        position: static;
    }

    .nav-submenu {
        position: static;
        opacity: 1;
        pointer-events: auto;
        transform: none;
        min-width: 0;
        margin-top: 0.55rem;
        margin-left: 0.8rem;
        padding: 0.25rem 0;
        border: 0;
        border-left: 2px solid rgba(255, 140, 0, 0.55);
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .nav-submenu a {
        padding: 0.3rem 0;
        font-size: 0.92rem;
        color: #d8d8d8;
    }

    .nav-list a {
        font-size: 1.1rem;
        padding: 0.7rem 0;
        display: block;
        border-bottom: 1px solid #2a2a2a;
    }

    .nav-list a::after {
        display: none;
    }

    .nav-list a:hover {
        color: #ff8c00;
    }

    .nav-list a.active {
        color: #ff8c00;
    }

    /* Shared components */
    body :is(
        .btn,
        .btn-secondary,
        .edit-btn,
        .switch-btn,
        .banner-search-btn,
        .deals-btn,
        .search-submit-btn,
        .login-btn,
        .verification-btn,
        .contact-submit-btn,
        .news-read-btn,
        .shop-record-btn,
        .view-btn,
        .secondary-btn,
        .go-shop-btn,
        .confirm-btn,
        .upload-btn,
        .chart-btn,
        .library-empty-btn,
        .offer-buy-link,
        .sr-action-btn,
        .order-op-btn
    ) {
        min-height: 40px;
        padding: 0.68rem 1rem;
        border-radius: 14px;
        font-size: 0.88rem;
    }

    body :is(
        .order-op-btn,
        .sr-action-btn,
        .offer-buy-link,
        .confirm-btn,
        .verification-btn,
        .news-read-btn
    ) {
        min-height: 36px;
        padding: 0.58rem 0.88rem;
        border-radius: 999px;
        font-size: 0.84rem;
    }

    .product-table {
        font-size: 0.9rem;
    }

    .product-table th,
    .product-table td {
        padding: 0.8rem 0.5rem;
    }

    /* Header */
    .header-inner {
        padding: 0 1rem;
        gap: 0.35rem;
    }

    .header-icons {
        order: 2;
        gap: 0.55rem;
        margin-left: auto;
        margin-right: 0;
    }

    .header-icon,
    .header-icons a {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 34px;
        height: 34px;
    }

    .header-icons {
        flex-shrink: 0;
    }

    /* Footer */
    footer {
        padding: 1.5rem 1rem calc(1.5rem + 74px + env(safe-area-inset-bottom));
        font-size: 0.9rem;
    }
}

/* Tablet: 768px to 991px */
@media (min-width: 768px) and (max-width: 991px) {
    .nav-list {
        gap: 1.5rem;
    }
}

@media (max-width: 767px) {
    header {
        padding: 0.78rem 0;
    }

    .logo {
        max-width: calc(100% - 98px);
    }

    .logo-image {
        width: 160px;
    }
}