@import url("https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;0,600;1,300&display=swap");

/* =============================================
   DESIGN TOKENS
   ============================================= */
:root {
    --bg: #0a0d14;
    --bg-2: #0f1420;
    --bg-3: #141926;
    --surface: #161c2d;
    --surface-2: #1d2540;
    --surface-3: #222d4a;
    --text-main: #f0f2f8;
    --text-secondary: #8b95b8;
    --text-muted: #5a6480;
    --accent: #6366f1;
    --accent-2: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --gold: #f5c842;
    --gold-dim: rgba(245, 200, 66, 0.15);
    --border: rgba(99, 102, 241, 0.12);
    --border-2: rgba(99, 102, 241, 0.22);
    --border-solid: #1e2844;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.6);
    --r-sm: 8px;
    --r: 14px;
    --r-lg: 20px;
    --r-xl: 28px;
    --nav-h: 68px;
    --t: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --t-slow: all 0.45s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 1rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

.breadcrumb a {
    color: var(--text-muted);
    transition: var(--t);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.breadcrumb a:hover {
    color: var(--accent);
}

.breadcrumb i {
    font-size: 0.75rem;
    opacity: 0.7;
}

.hero-breadcrumb {
    padding-bottom: 0;
    margin-bottom: -0.5rem;
}

[data-theme="light"] {
    --bg: #f5f6fa;
    --bg-2: #eef0f8;
    --bg-3: #e8eaf5;
    --surface: #ffffff;
    --surface-2: #f0f2fc;
    --surface-3: #e6e9f7;
    --text-main: #0d1020;
    --text-secondary: #4a5170;
    --text-muted: #8a90a8;
    --border: rgba(99, 102, 241, 0.1);
    --border-2: rgba(99, 102, 241, 0.2);
    --border-solid: #dde0f0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
}

/* =============================================
   RESET & BASE
   ============================================= */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
}

/* Effects */
.grain-overlay {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
}

.ambient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    top: -200px;
    right: -100px;
}

/* =============================================
   NAVBAR
   ============================================= */
.navbar-inner {
    max-width: 95%;
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

.navbar {
    height: var(--nav-h);
    position: sticky;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 2.5rem;
    padding: 12px;

    background: rgba(10, 13, 20, 0.7);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    transition: var(--t);
}

.nav-logo,
.nav-links,
.nav-right {
    margin: 0;
}

.navbar.scrolled {
    background: rgba(10, 13, 20, 0.92);
    border-bottom-color: var(--border-2);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
}

[data-theme="light"] .navbar {
    background: rgba(245, 246, 250, 0.85);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(245, 246, 250, 0.97);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
    margin-right: 1.2rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.9rem;
    box-shadow: 0 4px 14px var(--accent-glow);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.logo-accent {
    color: var(--accent-2);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    list-style: none;
}

.nav-links a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border-radius: var(--r-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--t);
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--text-main);
    background: var(--surface-2);
}

.nav-links a.active {
    color: var(--accent-2);
    background: rgba(99, 102, 241, 0.1);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-shrink: 0;
    margin-left: 1.2rem;
}

/* Search Bar */
.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon-nav {
    position: absolute;
    left: 0.85rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    pointer-events: none;
    z-index: 1;
}

.search-bar {
    height: 38px;
    width: 220px;
    padding: 0 1rem 0 2.4rem;
    background: var(--surface);
    border: 1px solid var(--border-solid);
    border-radius: 99px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.85rem;
    outline: none;
    transition: var(--t);
}

.search-bar:focus {
    width: 350px;
    border-color: var(--accent);
    background: var(--surface-2);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

/* History Button */
.nav-history-btn {
    height: 38px;
    padding: 0 1rem;
    background: var(--surface-2);
    border: 1px solid var(--border-solid);
    border-radius: 99px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--t);
}

.nav-history-btn:hover {
    background: var(--surface-3);
    color: var(--text-main);
    border-color: var(--border-2);
}

.theme-toggle {
    width: 38px;
    height: 38px;
    border-radius: 99px;
    background: var(--surface);
    border: 1px solid var(--border-solid);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--t);
}

.theme-toggle:hover {
    color: var(--gold);
    background: var(--surface-2);
}

/* Hamburger Menu Icon */
.hamburger {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: var(--r-sm);
    background: var(--surface);
    border: 1px solid var(--border-solid);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
}

.hamburger span {
    display: block;
    width: 16px;
    height: 1.5px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: var(--t);
    transform-origin: center;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
}



/* =============================================
   MOBILE MENU
   ============================================= */
.menu-active {
    overflow: hidden !important;
    height: 100vh;
}

.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 998;
    backdrop-filter: blur(4px);
}

.mobile-overlay.open {
    display: block;
}

/* Fix mobile search results layout */
.mobile-menu .search-container {
    display: block;
    width: 100%;
}

.mobile-menu {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border-solid);
    z-index: 999;
    padding: 1.5rem 1.25rem 2rem;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.mobile-menu.open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
}

.mobile-search-wrap {
    position: relative;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
    width: 100%;
}

.mobile-search-wrap>i {
    position: absolute;
    left: 2.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-size: 0.95rem;
    z-index: 2;
}

.mobile-search-wrap input {
    width: 100%;
    height: 52px;
    padding: 0 1rem 0 3.2rem;
    background: var(--surface);
    border: 1.5px solid var(--border-solid);
    border-radius: 14px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 1.05rem;
    outline: none;
    transition: var(--t);
    box-shadow: var(--shadow-sm);
}

.mobile-search-wrap input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mobile-nav-links a {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.9rem 1rem;
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--t);
    text-decoration: none;
}

.mobile-nav-links a i {
    font-size: 0.9rem;
    width: 20px;
    text-align: center;
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.mobile-history-btn {
    width: 100%;
    margin-top: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border: none;
    border-radius: 14px;
    color: white;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    box-shadow: 0 4px 16px var(--accent-glow);
}

/* =============================================
   SEARCH RESULTS
   ============================================= */
.search-results-overlay {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border-solid);
    border-radius: var(--r);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    max-height: 420px;
    overflow-y: auto;
    display: none;
}

/* Mobile specific search result adjustments */
.mobile-search-results {
    position: relative;
    top: 0;
    margin-top: 0.5rem;
    max-height: none;
    overflow: visible !important;
    box-shadow: none;
    border: none;
    background: var(--bg-2);
    padding-bottom: 2rem;
}

.search-results-overlay.active {
    display: block;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--t);
    border-bottom: 1px solid var(--border-solid);
    cursor: pointer;
    text-decoration: none;
}

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

.search-result-item:hover,
.search-result-item.selected {
    background: var(--accent-glow);
    color: var(--accent);
}

.search-result-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--accent-glow);
    color: var(--accent);
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1.15rem;
    flex-shrink: 0;
    transition: var(--t);
}

.search-result-item:hover .search-result-icon,
.search-result-item.selected .search-result-icon {
    background: var(--accent) !important;
    color: white !important;
}

.search-result-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.search-result-name {
    display: block;
}

.search-result-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 400;
}

.search-section-title {
    padding: 0.75rem 1rem;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    background: var(--bg-3);
    border-bottom: 1px solid var(--border-solid);
}

/* =============================================
   RESPONSIVE BREAKPOINTS
   ============================================= */
@media (max-width: 1355px) and (min-width: 1201px) {
    .search-bar {
        width: 38px;
        padding: 0;
        cursor: pointer;
        background: var(--surface-2);
        color: transparent;
    }

    .search-bar::placeholder {
        color: transparent;
    }

    .search-container .search-icon-nav {
        left: 50%;
        transform: translateX(-50%);
        color: var(--text-secondary);
        transition: var(--t);
    }

    .search-container:focus-within .search-bar {
        width: 220px;
        padding: 0 1rem 0 2.4rem;
        cursor: text;
        color: var(--text-main);
        background: var(--surface-2);
    }

    .search-container:focus-within .search-bar::placeholder {
        color: var(--text-muted);
    }

    .search-container:focus-within .search-icon-nav {
        left: 0.85rem;
        transform: none;
        color: var(--text-muted);
    }
}

@media (max-width: 1200px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex !important;
    }

    .navbar {
        padding: 0;
        justify-content: space-between;
        min-width: 0;
    }

    .navbar-inner,
    .breadcrumb,
    .container {
        max-width: 100%;
        width: 100%;
    }

    .navbar-inner {
        flex-wrap: nowrap;
        min-width: 0;
        padding: 0 1.5rem;
    }

    .nav-logo,
    .nav-right {
        min-width: 0;
    }
}

@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 3rem 2rem;
    }

    .hero-visual {
        display: none;
    }

    .hero-content {
        margin: 0 auto;
    }
}

@media (max-width: 900px) {
    .search-container {
        display: none;
    }

    .nav-history-btn {
        display: none;
    }
}

@media (max-width: 768px) {
    .breadcrumb {
        padding: 1.5rem 1.5rem 0;
    }

    .container {
        width: 100%;
        padding: 0 1.5rem 4rem !important;
    }

    .category-title {
        font-size: 1.4rem;
    }

    .navbar {
        padding: 0;
        gap: 1rem;
    }

    .navbar-inner {
        padding: 0 1rem;
    }

    .nav-logo {
        margin-right: auto;
    }

    .theme-toggle {
        display: flex;
    }
}

@media (max-width: 640px) {
    .calc-grid {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: clamp(1.8rem, 8vw, 2.5rem);
    }

    .hero {
        padding: 2.5rem 1.5rem 3.5rem;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }
}

/* =============================================
   SEARCH RESULTS
   ============================================= */
.search-results-overlay {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border-solid);
    border-radius: var(--r);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    max-height: 420px;
    overflow-y: auto;
    display: none;
}

/* Mobile specific search result adjustments */
.mobile-search-results {
    position: relative;
    top: 0;
    margin-top: 0.5rem;
    max-height: none;
    box-shadow: none;
    border: none;
    background: var(--bg-2);
    padding-bottom: 2rem;
}

.search-results-overlay.active {
    display: block;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--t);
    border-bottom: 1px solid var(--border-solid);
    cursor: pointer;
    text-decoration: none;
}

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

.search-result-item:hover,
.search-result-item.selected {
    background: var(--accent-glow);
    color: var(--accent);
}


.search-result-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--accent-glow);
    color: var(--accent);
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 1.15rem;
    flex-shrink: 0;
    transition: var(--t);
}

.search-result-icon i {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;
    text-align: center;
}



.search-result-item:hover .search-result-icon,
.search-result-item.selected .search-result-icon {
    background: var(--accent) !important;
    color: white !important;
}


.search-result-icon i {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100%;
    height: 100%;
    margin: 0 !important;
    text-align: center;
}


.search-result-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.search-result-name {
    display: block;
}

.search-result-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 400;
}

/* =============================================
   CALCULATIONS MANAGER (Sidebar)
   ============================================= */
.calc-manager-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.calc-manager-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.calc-manager-sidebar {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--bg-2);
    border-left: 1px solid var(--border-solid);
    z-index: 10001;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
}

.calc-manager-sidebar.open {
    right: 0;
}

.manager-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
}

.manager-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.manager-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 6px;
    transition: var(--t);
}

.manager-close:hover {
    color: var(--text-main);
    background: var(--surface-3);
}

.manager-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-solid);
}

.manager-tab {
    flex: 1;
    padding: 1rem 0;
    text-align: center;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    transition: var(--t);
}

.manager-tab.active {
    color: var(--accent-2);
    border-bottom-color: var(--accent);
}

.manager-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background: var(--bg);
}

.manager-panel {
    display: none;
    flex-direction: column;
    gap: 0.75rem;
}

.manager-panel.active {
    display: flex;
}

.saved-item {
    background: var(--surface);
    border: 1px solid var(--border-solid);
    border-radius: var(--r);
    padding: 1.1rem;
    margin-bottom: 0.75rem;
    transition: var(--t);
}

.saved-item-title {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
}

.saved-item-result {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-2);
    margin-top: 0.4rem;
}

/* =============================================
   HERO & BREADCRUMBS
   ============================================= */
.breadcrumb {
    padding: 1.5rem 3rem 0;
    max-width: 100%;
    margin: 0 auto;
    font-size: 0.85rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb a {
    color: var(--accent-2);
    transition: var(--t);
}

/* =============================================
   HERO WRAPPER - Aligned with Container
   ============================================= */
.hero-wrapper {
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero {
    padding: 3.5rem 1rem 4rem;
    width: 100%;
    max-width: 100%;
    margin: 0;
    display: grid;
    grid-template-columns: minmax(360px, 1fr) minmax(280px, 360px);
    align-items: center;
    min-height: auto !important;
    justify-items: center;
    justify-content: center;
    place-items: center;
    gap: 4.5rem;
}

.hero-visual {
    justify-self: center;
    align-self: center;
}

.hero-content {
    max-width: 760px;
    width: 100%;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 1rem;
}

@media (min-width: 1400px) {
    .hero-wrapper {
        padding: 0 2rem;
    }

    .hero {
        width: 100%;
        gap: 5rem;
        padding: 4rem 1rem 4rem;
    }

    .hero-visual {
        margin-right: auto;
        justify-self: start;
        margin-left: -9.5rem;
    }

    .hero-title {
        font-size: clamp(2.7rem, 5vw, 4.4rem);
    }

    .hero-subtitle {
        font-size: 1.45rem;
        line-height: 1.7;
    }

    .hero-eyebrow {
        font-size: 1.05rem;
        padding: 0.7rem 1.8rem;
        margin-bottom: 0.5rem;
    }
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--accent-2) 0%, #10b981 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0rem;
    font-weight: 300;
}

/* Pulse Animation */
.health-pulse-container {
    width: 280px;
    height: 280px;
    background: var(--surface);
    border: 1px solid var(--border-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.pulse-icon {
    font-size: 5rem;
    color: #10b981;
    animation: heart-beat 1.5s ease-in-out infinite;
}

@keyframes heart-beat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* =============================================
   CONTAINER & GRID
   ============================================= */
.container {
    width: 100%;
    max-width: 1800px;
    margin: 0 auto;
    padding: 0 2rem 6rem;
    position: relative;
    z-index: 1;
}

.category-section {
    margin-bottom: 5rem;
    padding: 0 1rem;
}

.category-title {
    display: flex;
    align-items: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    margin-top: 1rem;
    gap: 0.7rem;
    line-height: 1.2;
    background: var(--surface);
    border-left: 6px solid var(--accent);
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    padding: 0.6rem 1.2rem;
    box-shadow: var(--shadow-sm);
}

.category-title i {
    color: var(--accent-2);
}

.calc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.calc-card {
    background: var(--surface);
    border: 1px solid var(--border-solid);
    border-radius: var(--r-lg);
    padding: 1.75rem;
    transition: var(--t-slow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.calc-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-2);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.05), var(--surface-2));
}

.calc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-2), transparent);
    transition: width 0.4s ease, opacity 0.3s ease;
    opacity: 0;
    z-index: 2;
    box-shadow: 0 0 15px var(--accent-2);
}

.calc-card:hover::before {
    width: 80%;
    opacity: 1;
}

[data-theme="light"] .calc-card:hover {
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
    background: radial-gradient(circle at top left, rgba(99, 102, 241, 0.03), #fff);
}

.category-icon {
    width: 44px;
    height: 44px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent-2);
    transition: var(--t);
}

.calc-card:hover .category-icon {
    background: var(--accent);
    color: white;
    transform: translateY(-5px);
}

.card-arrow {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: var(--t);
    position: absolute;
    bottom: 1.5rem;
    right: 1.5rem;
    opacity: 0;
    transform: translateX(-10px);
    border: 1px solid var(--border-solid);
}

.calc-card:hover .card-arrow {
    opacity: 1;
    transform: translateX(0);
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* =============================================
   RESPONSIVE (Enhanced)
   ============================================= */
@media (min-width: 1600px) {
    .hero {
        padding: 2rem 1rem 3.5rem;
        gap: 4.5rem;
    }

    .hero-wrapper {
        padding: 0 5rem;
    }

    .hero-content {
        max-width: 1100px;
    }

    .hero-title {
        font-size: clamp(3.9rem, 8vw, 3.8rem);
    }

    .hero-subtitle {
        font-size: 1.35rem;
    }

    .health-pulse-container {
        width: 300px;
        height: 300px;
    }

    .pulse-icon {
        font-size: 5.5rem;
    }

    .container {
        padding: 0 5rem 6rem;
    }

    .hero-wrapper {
        padding: 0 5rem;
    }

    .breadcrumb {
        padding: 1.5rem 6rem 0;
    }
}

@media (max-width: 1200px) {
    .nav-links {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .navbar {
        padding: 0.5rem 1.3rem;
        justify-content: space-between;
    }

    .breadcrumb,
    .container,
    .hero-wrapper {
        max-width: 98%;
    }
}

@media (max-width: 1400px) and (min-width: 1200px) {
    .hero {
        padding: 3.5rem 1rem 4rem;
        gap: 3.5rem;
    }

    .hero-wrapper {
        padding: 0 2rem;
    }

    .hero-content {
        max-width: 1150px;
    }

    .health-pulse-container {
        width: 280px;
        height: 280px;
    }

    .pulse-icon {
        font-size: 5rem;
    }
}

@media (max-width: 1200px) {
    .breadcrumb {
        justify-content: center;
    }

    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 3.5rem 1.5rem;
        gap: 2rem;
    }

    .hero-visual {
        display: none;
    }

    .hero-content {
        margin: 0 auto;
        max-width: 800px;
    }

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

@media (max-width: 900px) {
    .search-container {
        display: none;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 0.35rem 3rem !important;
    }

    .breadcrumb {
        width: 92%;
        max-width: 92%;
        margin: 0 auto;
        font-size: 0.7rem;
        padding-top: 1rem;
        text-align: left;
    }

    .hero {
        padding: 1.25rem 0;
        width: 92%;
        max-width: 92%;
        margin: 0 auto;
        text-align: left;
        min-height: auto;
    }

    .hero-content {
        margin: 0;
        width: 100%;
        max-width: 100%;
        text-align: left;
    }

    .hero-title {
        font-size: clamp(1.1rem, 5.5vw, 1.5rem);
        margin-bottom: 0.75rem;
        text-align: left;
    }

    .hero-title br,
    .hero-subtitle br {
        display: none;
    }

    .hero-subtitle {
        font-size: 0.8rem;
        line-height: 1.4;
        max-width: 100%;
        text-align: left;
        margin: 0;
    }

    .hero-eyebrow {
        font-size: 0.6rem;
        padding: 0.35rem 0.8rem;
        justify-content: flex-start;
        width: fit-content;
        white-space: nowrap;
        max-width: none;
        margin-bottom: 1rem;
    }

    .calc-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .calc-card {
        padding: 1rem 1.25rem;
        display: grid !important;
        grid-template-columns: auto 1fr;
        grid-template-areas:
            "icon title"
            "desc desc";
        align-items: center;
        gap: 0.25rem 0.85rem;
        border-radius: 12px;
        position: relative;
    }

    .category-icon {
        grid-area: icon;
        width: 38px !important;
        height: 38px !important;
        font-size: 1rem !important;
        margin-bottom: 0 !important;
        border-radius: 10px;
        display: flex !important;
        align-items: center;
        justify-content: center;
    }

    .calc-card h3 {
        grid-area: title;
        font-size: 0.95rem;
        margin-bottom: 0 !important;
        color: var(--accent-2);
    }

    .calc-card p {
        grid-area: desc;
        font-size: 0.8rem;
        line-height: 1.4;
        margin-top: 0.25rem;
        color: var(--text-secondary);
    }

    .calc-card .card-arrow {
        display: none;
    }

    .category-title {
        display: flex;
        align-items: center;
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 1.25rem;
        margin-top: 1rem;
        gap: 0.7rem;
        line-height: 1.2;
        background: var(--surface);
        border-left: 6px solid var(--accent);
        border-radius: 0 var(--r-sm) var(--r-sm) 0;
        padding: 0.6rem 1.2rem;
        box-shadow: var(--shadow-sm);
    }
}

/* =============================================
   FOOTER
   ============================================= */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border-solid);
    position: relative;
    z-index: 1;
    margin-top: 4rem;
}

.footer-inner {
    max-width: 95%;
    margin: 0 auto;
    padding: 4rem 3rem 3rem;
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 4rem;
    align-items: start;
}

.footer-brand .nav-logo {
    margin-bottom: 0.85rem;
}

.footer-brand p {
    font-size: 0.875rem;
    color: var(--text-muted);
    max-width: 280px;
    line-height: 1.65;
    font-weight: 300;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

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

.footer-col h5 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 1.25rem;
    line-height: 1.2;
}

.footer-col h5::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent), var(--accent-2));
    border-radius: 4px;
}

.footer-col a {
    font-size: 0.92rem;
    color: var(--text-muted);
    transition: var(--t);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.footer-col a::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.25;
    transition: var(--t);
    flex-shrink: 0;
    box-shadow: 0 0 0 2px transparent;
}

.footer-col a:hover {
    color: var(--accent);
    padding-left: 0.5rem;
}

.footer-col a:hover::before {
    opacity: 1;
    transform: scale(1.2);
    background: var(--accent-2);
    box-shadow: 0 0 10px var(--accent-glow);
}

.footer-bottom {
    border-top: 1px solid var(--border-solid);
    padding: 1.5rem 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 95%;
    margin: 0 auto;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 300;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 1350px) {
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 4rem 2rem;
    }

    .footer-brand {
        max-width: 100%;
        text-align: left;
    }

    .footer-brand p {
        max-width: 450px;
    }

    .footer-links {
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 1000px) {
    .footer-links {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-col:nth-child(5) {
        display: none;
    }
}

@media (max-width: 780px) {
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-col:nth-child(4) {
        display: none;
    }
}

@media (max-width: 600px) {
    .footer-inner {
        padding: 3rem 1.5rem;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 3.5rem 2rem;
    }

    /* Restore visibility of items hidden in larger breakpoints */
    .footer-col:nth-child(4),
    .footer-col:nth-child(5) {
        display: flex;
    }

    /* Last item spans 1 column in a 2-column grid, creating the 2x2x1 look */
    .footer-col:nth-child(5) {
        grid-column: span 1;
    }

    .footer-bottom {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
}

@media (max-width: 362px) {
    .footer-links {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

/* =============================================
   SCROLL TOP
   ============================================= */
.scroll-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    box-shadow: 0 6px 20px var(--accent-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: var(--t);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 28px var(--accent-glow);
}

/* Selection & Focus */
::selection {
    background: var(--accent);
    color: white;
}

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

@keyframes scaleFadeIn {
    from {
        opacity: 0;
        transform: scale(0.96);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}




/* =============================================
   SEARCH NO RESULTS OVERHAUL
   ============================================= */
.search-no-results {
    padding: 1.25rem 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(180deg, var(--surface), var(--bg-2));
    border-radius: 20px;
    margin: 0.5rem;
    width: 100%;
    position: relative;
    overflow: hidden;
    animation: scaleFadeIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.search-no-results::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.snr-image-wrap {
    width: 90px;
    height: 90px;
    position: relative;
    z-index: 1;
    padding: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 50%;
    box-shadow: 0 10px 30px var(--accent-glow);
    animation: snr-heartbeat 2s ease-in-out infinite;
}

.snr-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    background: var(--surface);
    border: 4px solid var(--surface);
}

@keyframes snr-heartbeat {
    0% {
        transform: scale(1);
        box-shadow: 0 10px 30px var(--accent-glow);
    }

    14% {
        transform: scale(1.05);
        box-shadow: 0 15px 40px var(--accent-glow);
    }

    28% {
        transform: scale(1);
        box-shadow: 0 10px 30px var(--accent-glow);
    }

    42% {
        transform: scale(1.05);
        box-shadow: 0 15px 40px var(--accent-glow);
    }

    70% {
        transform: scale(1);
        box-shadow: 0 10px 30px var(--accent-glow);
    }
}

.snr-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0;
    letter-spacing: -0.01em;
    z-index: 1;
}

.snr-sub {
    font-size: 0.9rem;
    color: var(--text-secondary);
    max-width: 300px;
    line-height: 1.6;
    margin: 0;
    z-index: 1;
}

.snr-sub strong {
    color: var(--accent);
    font-weight: 700;
}

.snr-tips {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    padding: 1.25rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--border-solid);
    z-index: 1;
    width: 100%;
}

[data-theme="light"] .snr-tips {
    background: rgba(0, 0, 0, 0.02);
}

.snr-tips span {
    width: 100%;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.snr-tips span::before,
.snr-tips span::after {
    content: "";
    height: 1px;
    background: var(--border-solid);
    flex: 1;
}

.snr-tips code {
    background: var(--surface);
    color: var(--text-main);
    padding: 0.5rem 1.1rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--border-solid);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    font-family: var(--font-body);
}

.snr-tips code:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 20px var(--accent-glow);
}

/* =============================================
   ULTRA-MOBILE OPTIMIZATION (STUNNING AESTHETICS)
   ============================================= */
@media (max-width: 546px) {

    /* HERO TITLE - Maximum Impact */
    h1,
    .hero-title,
    .card-title,
    .hero-title span {
        font-size: 2.1rem !important;
        letter-spacing: -0.03em !important;
        line-height: 1.1 !important;
    }

    .hero-subtitle {
        font-size: 1.05rem !important;
        line-height: 1.6 !important;
        opacity: 1;
    }

    .hero-eyebrow {
        font-size: 0.9rem !important;
        font-weight: 700 !important;
    }

    /* Other Typography (Balanced) */
    h2,
    .section-title,
    .category-title {
        font-size: 1.4rem !important;
        letter-spacing: -0.01em !important;
    }

    h3 {
        font-size: 1.2rem !important;
    }

    h4 {
        font-size: 1.05rem !important;
    }

    p,
    .footer-brand p,
    .calc-card p,
    .card-desc {
        font-size: 0.9rem !important;
        line-height: 1.6 !important;
        opacity: 1;
    }

    a,
    .nav-links a,
    .footer-col a,
    label,
    .input-label,
    .form-label,
    span,
    .breadcrumb {
        font-size: 0.85rem !important;
    }

    /* Spacing & Layout Optimization */
    .container,
    .navbar-inner,
    .hero,
    .footer-inner,
    .faq-section-wrap,
    .tool-container,
    .card {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
        max-width: 100% !important;
        width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    .hero {
        padding-top: 2rem !important;
        padding-bottom: 2rem !important;
        min-height: auto !important;
    }

    .calc-grid,
    .grid,
    .calc-form {
        gap: 1rem !important;
    }

    .form-group {
        gap: 0.4rem !important;
    }

    /* Card & Component Refinement */
    .calc-card,
    .card,
    .tool-container,
    .result-box,
    .result-main,
    .result-item {
        padding: 1rem !important;
        border-radius: 14px !important;
        margin-bottom: 0.85rem !important;
    }

    .card-header {
        margin-bottom: 1.25rem !important;
    }

    .result-box {
        margin-top: 1.5rem !important;
        padding-top: 1.5rem !important;
    }

    /* Form Elements */
    .input-field,
    .search-bar,
    select {
        height: 44px !important;
        font-size: 0.95rem !important;
        padding: 0 0.85rem !important;
        border-radius: 10px !important;
    }

    .btn-primary,
    .btn-ghost,
    .btn-calculate,
    .btn-premium {
        height: 46px !important;
        padding: 0 1.25rem !important;
        font-size: 0.95rem !important;
        border-radius: 10px !important;
        width: 100% !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        margin-top: 0.4rem !important;
    }

    /* Icon & Visual Scaling */
    .category-icon,
    .card-icon-wrap,
    .logo-icon,
    .divider-icon-box,
    .feature-icon-wrap,
    .step-num {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        font-size: 1rem !important;
    }

    .logo-text {
        font-size: 1.1rem !important;
    }

    /* Result Specifics */
    .result-value {
        font-size: 2.2rem !important;
    }

    .result-label,
    .res-label {
        font-size: 0.75rem !important;
    }
}