/* ==========================================================================
   CSS CUSTOM PROPERTIES & DESIGN TOKENS
   ========================================================================== */
:root {
    /* Color Palette */
    --color-bg: #FAF9F6;
    /* Elegant off-white/cream background */
    --color-card-bg: #FFFFFF;
    /* Pure white for overlays */
    --color-text-main: #1A1A1A;
    /* Deep charcoal for body/headings */
    --color-text-muted: #5E5E5E;
    /* Mid-gray for secondary text */
    --color-text-light: #FFFFFF;
    /* White text for image overlay */
    --color-accent-orange: #ED572F;
    /* Vibrant orange for logo block */
    --color-accent-orange-hover: #D7431B;
    --color-overlay-dark: rgba(0, 0, 0, 0.25);
    /* Subtle dark overlay for legibility */

    /* Typography */
    --font-heading: 'Instrument Serif', Georgia, serif;
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    /* Spacing & Layout */
    --page-padding: 2.5rem;
    --border-radius-main: 0px;
    --border-radius-card: 0px;
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* Shadows */
    --shadow-premium: 0 10px 30px rgba(0, 0, 0, 0.04), 0 1px 8px rgba(0, 0, 0, 0.02);
    --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.08);
}

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

html,
body {
    width: 100%;
    height: 100%;
    height: 100dvh;
    background-color: var(--color-bg);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    /* Enforce single viewport */
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */
.app-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    padding: var(--page-padding);
    gap: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
}

@media (max-width: 992px) {
    .app-container {
        height: 100%;
        height: 100dvh;
        padding: 1rem;
        gap: 0.75rem;
    }
}

/* ==========================================================================
   HEADER / NAVIGATION
   ========================================================================== */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 50px;
    padding: 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: inherit;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
    display: block;
    flex-shrink: 0;
}

.logo-wordmark {
    font-family: var(--font-heading);
    font-size: 1.65rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1;
    white-space: nowrap;
    color: inherit;
}

.logo-container:hover .logo-img {
    transform: scale(1.05);
}

.main-nav {
    display: flex;
    flex: 1;
    justify-content: flex-end;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: var(--color-text-main);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 0.25rem 0;
    transition: var(--transition-smooth);
    opacity: 0.85;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-text-main);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    opacity: 1;
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-link.active {
    opacity: 1;
    color: var(--color-accent-orange);
    font-weight: 600;
}

.nav-link.active::after {
    transform: scaleX(1);
    background-color: var(--color-accent-orange);
}

/* Mobile Nav Toggle Button */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 100;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-main);
    margin: 5px 0;
    transition: var(--transition-smooth);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        min-width: 44px;
        min-height: 44px;
        padding: 0.5rem;
    }

    .nav-toggle span {
        margin: 0;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100%;
        height: 100dvh;
        background-color: var(--color-card-bg);
        flex-direction: column;
        justify-content: center;
        gap: 3rem;
        z-index: 99;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        transition: right 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        flex: none;
    }

    .main-nav.active {
        right: 0;
    }

    .nav-link {
        font-size: 1.3rem;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
}

/* ==========================================================================
   SCROLLABLE CONTENT PAGES
   ========================================================================== */
html.scrollable-page,
body.scrollable-page {
    overflow-y: auto !important;
    overflow-x: hidden !important;
    height: auto !important;
}

html.scrollable-page .app-container,
body.scrollable-page .app-container {
    height: auto !important;
    min-height: 100vh;
    min-height: 100dvh;
    padding-bottom: 0;
}

html.scrollable-page .hero-showcase,
body.scrollable-page .hero-showcase {
    flex: none !important;
    height: auto !important;
    min-height: calc(100vh - 120px);
    min-height: calc(100dvh - 120px);
    overflow: visible !important;
}

/* ==========================================================================
   MOBILE WEB — PHASE 1
   ========================================================================== */
@media (max-width: 992px) {
    html,
    body {
        overflow-y: auto !important;
        overflow-x: hidden;
        height: auto !important;
        min-height: 100dvh;
    }

    .app-container {
        height: auto !important;
        min-height: 100dvh;
        padding-bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
    }

    .hero-showcase {
        flex: none !important;
        height: auto !important;
        min-height: 0;
        overflow: visible !important;
    }

    body.has-announcement {
        height: auto !important;
        overflow-y: auto !important;
    }

    body.has-announcement .app-container {
        height: auto !important;
        flex: none;
    }
}

/* Mobile nav backdrop — must live inside .app-container (see nav.js) */
.nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 180;
    background: rgba(0, 0, 0, 0.45);
    border: 0;
    padding: 0;
    margin: 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.nav-backdrop[hidden] {
    display: none !important;
}

body.nav-open {
    overflow: hidden !important;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        min-width: 44px;
        min-height: 44px;
        padding: 0.5rem;
        overflow: visible;
        position: relative;
        z-index: 220;
    }

    .nav-toggle span {
        margin: 0;
        flex-shrink: 0;
        transform-origin: center;
    }

    .main-nav {
        display: flex;
        width: min(85vw, 320px);
        padding-top: calc(2rem + env(safe-area-inset-top, 0px));
        padding-bottom: calc(2rem + env(safe-area-inset-bottom, 0px));
        padding-left: 1.5rem;
        padding-right: 1.5rem;
        overscroll-behavior: contain;
        z-index: 210;
        pointer-events: auto;
    }

    .main-nav .nav-link {
        position: relative;
        z-index: 1;
        pointer-events: auto;
        cursor: pointer;
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.08);
    }

    /* Toggle stays above drawer + dimmer */
    body.nav-open .site-header {
        z-index: 220;
        position: relative;
    }

    .nav-backdrop {
        z-index: 180;
    }

    .site-header {
        padding-top: env(safe-area-inset-top, 0px);
    }

    /* Prevent iOS input zoom */
    input,
    select,
    textarea,
    .inv-dd-trigger {
        font-size: 16px !important;
    }
}

@media (max-width: 480px) {
    .main-nav {
        width: 100vw;
        max-width: 100vw;
        padding-top: calc(2.5rem + env(safe-area-inset-top, 0px));
        padding-bottom: calc(2.5rem + env(safe-area-inset-bottom, 0px));
        padding-left: 2rem;
        padding-right: 2rem;
    }

    .nav-link {
        font-size: 1.05rem;
        padding: 0.65rem 0;
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

/* Replace heavy backdrop-filter with solid fills on mobile */
@media (max-width: 768px) {
    .waitlist-card,
    .blog-table-wrapper,
    .blog-post-card,
    .info-card,
    .blog-news-card,
    .blog-featured-card {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .waitlist-card {
        background: rgba(20, 20, 20, 0.96);
    }

    .blog-table-wrapper {
        background: rgba(255, 255, 255, 0.04);
    }

    .blog-post-card,
    .info-card,
    .blog-news-card,
    .blog-featured-card {
        background: rgba(255, 255, 255, 0.05);
    }
}

/* Phase 3: reduced motion + mobile touch polish */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .glow-orb,
    .blog-skel-block,
    .blog-skel-line {
        animation: none !important;
    }

    .hero-bg,
    .hero-bg-fallback,
    .waitlist-bg {
        transition: none !important;
    }
}

@media (max-width: 768px) {
    .nav-link {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    .announcement-cta {
        min-height: 44px;
        padding: 0.35rem 0;
    }
}

@media (max-width: 768px) {
    .hero-showcase:hover .hero-bg,
    .hero-showcase:hover .hero-bg-fallback,
    .trend-card:hover,
    .blog-post-card:hover,
    .vc-card:hover,
    .info-card:hover,
    .logo-container:hover .logo-img {
        transform: none !important;
    }
}