/* ==========================================================================
   KUMARA LANDING KIT PRO - CORE DESIGN SYSTEM
   ========================================================================== */

:root {
    /* 🎨 PALETA MAESTRA (Personalizable por el usuario) */
    --km-landing-primary: #C1674A;
    --km-landing-primary-rgb: 193, 103, 74;
    --km-landing-secondary: #6B7C5C;
    --km-landing-accent: #F2EBE0;

    /* 🌚 NEUTROS */
    --km-landing-bg: #FBF7F2;
    --km-landing-text: #1A1C18;
    --km-landing-muted: #8C7E74;
    --km-landing-white: #FFFFFF;

    /* ✅ SEMÁNTICA */
    --km-landing-success: #4CAF50;
    --km-landing-error: #FF5252;

    /* 📏 ESCALA DE ESPACIADO (BASE 4px) */
    --km-space-xs: 4px;
    --km-space-sm: 8px;
    --km-space-md: 16px;
    --km-space-lg: 24px;
    --km-space-xl: 48px;
    --km-space-xxl: 88px;

    /* ✍️ TIPOGRAFÍA FLUIDA */
    /* Clamp: (min_size, viewport_size, max_size) */
    --km-font-h1: clamp(42px, 6.5vw, 76px);
    --km-font-h2: clamp(32px, 4vw, 52px);
    --km-font-h3: clamp(24px, 3vw, 36px);
    --km-font-h4: clamp(20px, 2vw, 28px);
    --km-font-body: 16px;
    --km-font-small: 13px;

    /* FAMILIAS */
    --km-font-family-heading: 'Cormorant Garamond', serif;
    --km-font-family-body: 'Jost', sans-serif;

    /* 💎 EFECTOS */
    --km-radius: 12px;
    --km-radius-lg: 24px;
    --km-shadow-sm: 0 4px 18px rgba(0, 0, 0, 0.06);
    --km-shadow-md: 0 10px 32px rgba(0, 0, 0, 0.11);
    --km-shadow-lg: 0 20px 56px rgba(0, 0, 0, 0.16);
}

/* --- ESTILOS BASE DE COMPONENTE --- */
.km-landing-block {
    position: relative;
    padding: var(--km-space-xxl) 7vw;
    background-color: var(--km-landing-bg);
    color: var(--km-landing-text);
    overflow: hidden;
    box-sizing: border-box;
    font-family: var(--km-font-family-body);
}

/* --- SISTEMA DE REVEAL (Intersection Observer) --- */
.rv {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.4, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.4, 1);
    will-change: opacity, transform;
}

.rv.on {
    opacity: 1;
    transform: none;
}

/* Variantes de Animación */
.rv-l {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.8s ease;
}

.rv-r {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.8s ease;
}

.rv-sc {
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.8s ease;
}

.rv-l.on,
.rv-r.on,
.rv-sc.on {
    opacity: 1;
    transform: none;
}

/* Delays */
.d1 {
    transition-delay: 0.1s;
}

.d2 {
    transition-delay: 0.2s;
}

.d3 {
    transition-delay: 0.3s;
}

.d4 {
    transition-delay: 0.4s;
}

.d5 {
    transition-delay: 0.5s;
}

/* --- UTILIDADES TIPOGRÁFICAS --- */
.km-landing-title {
    font-family: var(--km-font-family-heading);
    font-size: var(--km-font-h1);
    line-height: 1.05;
    font-weight: 600;
    margin-bottom: var(--km-space-lg);
}

.km-landing-subtitle {
    font-family: var(--km-font-family-heading);
    font-size: var(--km-font-h2);
    line-height: 1.1;
    font-weight: 600;
    margin-bottom: var(--km-space-md);
}

.km-landing-desc {
    font-size: var(--km-font-body);
    line-height: 1.75;
    color: var(--km-landing-muted);
}

/* --- BOTONES PREMIUM --- */
.km-landing-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: var(--km-font-family-body);
}

.btn-primary {
    background-color: var(--km-landing-primary);
    color: white;
}

.btn-primary:hover {
    background-color: #9B4F38;
    /* Terra Dark */
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(193, 103, 74, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--km-landing-text);
    border: 1.5px solid rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
    background-color: rgba(0, 0, 0, 0.03);
    border-color: var(--km-landing-text);
}