/* ==========================================================================
   ITSMATA.ME — Material 3 Expressive Design System (Shared Tokens & Layout)
   ========================================================================== */

:root {
    /* Material 3 Expressive Dark Palette (Default) */
    --bg-color: #101014;
    --bg: #101014;
    --card-bg: #1E1E24;
    --card: #1E1E24;
    --card-bg-high: #282830;
    --panel: #24242C;
    --card-bg-highest: #32323C;
    --text-main: #E3E2E6;
    --text: #E3E2E6;
    --text-dim: #A0A0AB;
    --muted: #A0A0AB;
    --mata-gray: #33333D;
    --border: #33333D;
    --mata-orange: #ff4d00;
    --orange: #ff4d00;
    --mata-orange-container: rgba(255, 77, 0, 0.14);
    --mata-yellow: #ffb700;
    --yellow: #ffb700;
    --accent-grad: linear-gradient(135deg, var(--mata-orange), var(--mata-yellow));

    /* Material 3 Expressive Shapes & Motion */
    --card-radius: 28px;
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --pill-radius: 9999px;
    --spring-ease: cubic-bezier(0.2, 0, 0, 1);
    --t: 0.28s cubic-bezier(0.2, 0, 0, 1);
    --elevation-1: 0 8px 24px rgba(0, 0, 0, 0.28);
    --elevation-2: 0 16px 40px rgba(0, 0, 0, 0.42);
}

body.light-mode,
body.light {
    /* Material 3 Expressive Light Palette */
    --bg-color: #FDFBFF;
    --bg: #FDFBFF;
    --card-bg: #F1EFF4;
    --card: #F1EFF4;
    --card-bg-high: #E5E3E9;
    --panel: #E9E7EC;
    --card-bg-highest: #DAD8E0;
    --text-main: #1B1B1F;
    --text: #1B1B1F;
    --text-dim: #53535C;
    --muted: #53535C;
    --mata-gray: #D1CFD7;
    --border: #D1CFD7;
    --mata-orange-container: rgba(255, 77, 0, 0.12);
    --elevation-1: 0 6px 20px rgba(27, 27, 31, 0.07);
    --elevation-2: 0 14px 34px rgba(27, 27, 31, 0.12);
}

*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
    padding-top: 88px;
    transition: background-color var(--t), color var(--t);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

/* ── Accesibilidad: Skip Link & Focus ── */
.skip-link {
    position: fixed;
    top: -100px;
    left: 16px;
    background: var(--mata-orange);
    color: #000;
    font-weight: 800;
    padding: 10px 18px;
    border-radius: var(--pill-radius);
    z-index: 9999;
    text-decoration: none;
    transition: top 0.2s ease;
}
.skip-link:focus {
    top: 14px;
}

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

/* ── Sistema Unificado de Idiomas (ES / EN) ── */
.lang-en, .en { display: none !important; }
body.en-active .lang-es, body.lang-en .lang-es,
body.en-active .es, body.lang-en .es { display: none !important; }

body.en-active .lang-en, body.lang-en .lang-en,
body.en-active .en, body.lang-en .en { display: revert !important; }

body.en-active span.lang-en, body.lang-en span.lang-en,
body.en-active span.en, body.lang-en span.en { display: inline !important; }

body.en-active a.lang-en, body.lang-en a.lang-en { display: inline-flex !important; }
.hevy-profile-btn.lang-es { display: flex !important; }
body.en-active .hevy-profile-btn.lang-es { display: none !important; }
body.en-active .hevy-profile-btn.lang-en { display: flex !important; }

/* ── Navbar Unificada Material 3 Expressive ── */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 72px;
    background: rgba(16, 16, 20, 0.84);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 3000;
    border-bottom: 1px solid var(--mata-gray);
    transition: background-color var(--t), border-color var(--t);
}

body.light-mode .navbar,
body.light .navbar {
    background: rgba(253, 251, 255, 0.86);
}

.nav-container,
.nav-inner {
    max-width: 1280px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}

.nav-logo,
.nav-brand {
    font-weight: 900;
    font-size: 1.22rem;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.5px;
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.nav-logo span,
.nav-brand span {
    color: var(--mata-orange);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links li {
    display: flex;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 0.88rem;
    font-weight: 700;
    padding: 8px 16px;
    border-radius: var(--pill-radius);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-links a:hover {
    background: var(--card-bg-high);
    color: var(--mata-orange);
}

.nav-links a.active,
.nav-links a[aria-current="page"] {
    background: var(--mata-orange-container);
    color: var(--mata-orange);
}

.menu-icon,
.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: transparent;
    border: 1px solid transparent;
    padding: 8px;
    transition: background-color 0.2s;
}

.menu-icon:hover,
.hamburger:hover {
    background: var(--card-bg-high);
}

.menu-icon .bar,
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: 0.3s var(--spring-ease);
}

@media (max-width: 820px) {
    .menu-icon,
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 72px;
        right: -100%;
        width: min(300px, 80vw);
        height: calc(100vh - 72px);
        background: var(--card-bg);
        flex-direction: column;
        align-items: stretch;
        padding: 24px 20px;
        gap: 10px;
        transition: right 0.35s var(--spring-ease);
        border-left: 1px solid var(--mata-gray);
        box-shadow: -12px 0 32px rgba(0, 0, 0, 0.35);
        z-index: 2999;
    }

    .nav-links.active,
    .nav-links.open {
        right: 0;
    }

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

    .nav-links a {
        width: 100%;
        padding: 14px 18px;
        font-size: 0.98rem;
        border-radius: 16px;
    }
}

/* ── Encabezados de Página Expresivos (M3 Hero Header) ── */
.page-header {
    border-left: 5px solid var(--mata-orange);
    padding-left: 20px;
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-weight: 900;
    letter-spacing: -0.8px;
    margin: 0;
    line-height: 1.15;
}

.page-header p {
    color: var(--text-dim);
    margin: 6px 0 0 0;
    font-size: 0.96rem;
    line-height: 1.5;
}

/* ── Controles Flotantes M3 Expressive (FABs) ── */
.floating-controls,
.float-controls {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 4000;
}

.f-btn {
    background: var(--card-bg);
    border: 1px solid var(--mata-gray);
    color: var(--text-main);
    width: 50px;
    height: 50px;
    border-radius: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--elevation-1);
    transition: transform 0.2s var(--spring-ease), border-color 0.2s ease, background-color 0.2s ease;
}

.f-btn:hover {
    border-color: var(--mata-orange);
    background: var(--card-bg-high);
    transform: translateY(-2px);
}

.f-btn:active {
    transform: scale(0.92);
}

/* ── Footer Unificado ── */
.site-footer,
footer {
    margin-top: 56px;
    padding: 24px 16px;
    border-top: 1px dashed var(--mata-gray);
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-dim);
    line-height: 1.75;
    width: 100%;
}