/* ========================================
   PORTFOLIO - ESTILOS PRINCIPALES
   ========================================
   
   Un diseño oscuro, elegante y moderno con:
   - Design tokens (variables CSS)
   - Microinteracciones suaves
   - Glassmorphism
   - Soporte para prefers-reduced-motion
   - Accesibilidad
   - Layout fluido y responsive
   
   ======================================== */

/* ----------------------------------------
   DESIGN TOKENS - Variables CSS
   ---------------------------------------- */
:root {
    /* === Colores de fondo === */
    --bg: #0a0a0f;
    --bg-secondary: #0d0d14;
    --bg-tertiary: #111118;
    
    /* === Colores de superficie (cards, etc.) === */
    --surface: rgba(18, 18, 28, 0.7);
    --surface-hover: rgba(24, 24, 38, 0.85);
    --surface-elevated: rgba(28, 28, 42, 0.8);
    
    /* === Colores de texto === */
    --text: #f5f5f7;
    --text-secondary: #a8a8b3;
    --muted: #5a5a6e;
    --accent: #00d4ff;
    --accent-secondary: #7c3aed;
    
    /* === Gradientes === */
    --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --gradient-accent-subtle: linear-gradient(135deg, rgba(0, 212, 255, 0.15) 0%, rgba(124, 58, 237, 0.15) 100%);
    --gradient-bg: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
                   radial-gradient(ellipse 60% 40% at 100% 100%, rgba(124, 58, 237, 0.08) 0%, transparent 50%);
    
    /* === Bordes === */
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --border-accent: rgba(0, 212, 255, 0.4);
    
    /* === Sombras === */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    --shadow-glow-strong: 0 0 60px rgba(0, 212, 255, 0.25);
    
    /* === Bordes redondeados === */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* === Espaciado === */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* === Tipografía === */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: clamp(0.7rem, 0.65rem + 0.25vw, 0.75rem);
    --font-size-sm: clamp(0.8rem, 0.75rem + 0.25vw, 0.875rem);
    --font-size-base: clamp(0.9rem, 0.85rem + 0.25vw, 1rem);
    --font-size-lg: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --font-size-xl: clamp(1.1rem, 1rem + 0.5vw, 1.25rem);
    --font-size-2xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --font-size-3xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --font-size-4xl: clamp(2rem, 1.5rem + 2.5vw, 3rem);
    --font-size-5xl: clamp(2.5rem, 2rem + 3vw, 4rem);
    
    /* === Transiciones === */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-bounce: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* === Z-index === */
    --z-base: 1;
    --z-elevated: 10;
    --z-header: 100;
    --z-modal: 1000;
    
    /* === Contenedor === */
    --container-max: 100%;
    --container-width: min(var(--container-max), 92vw);
    --container-padding: clamp(1rem, 4vw, 2rem);
    
    /* === Header === */
    --header-height: 64px;
    
    /* === Safe area para iOS === */
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-height) + var(--space-lg));
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Respeta la preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
    min-height: 100vh;
    overflow-x: hidden;
    padding-top: var(--safe-area-top);
    padding-bottom: var(--safe-area-bottom);
}

/* Fondo con gradiente */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-bg), var(--bg);
    pointer-events: none;
    z-index: -2;
}

/* Patrón de ruido sutil */
body::after {
    content: '';
    position: fixed;
    inset: 0;
    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)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: -1;
}

/* ----------------------------------------
   CURSOR PERSONALIZADO
   ---------------------------------------- */
@media (pointer: fine) {
    body {
        cursor: none;
    }

    .custom-cursor {
        position: fixed;
        top: 0;
        left: 0;
        width: 42px;
        height: 42px;
        border: 1px solid rgba(0, 212, 255, 0.45);
        background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, rgba(0, 212, 255, 0) 60%);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        pointer-events: none;
        z-index: 9999;
        mix-blend-mode: screen;
        box-shadow: 0 0 24px rgba(0, 212, 255, 0.2);
        transition: transform 160ms ease, opacity 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
        opacity: 0;
    }

    .custom-cursor.is-visible {
        opacity: 1;
    }

    .custom-cursor.is-hovering {
        transform: translate(-50%, -50%) scale(1.7);
        opacity: 0.85;
        border-color: rgba(124, 58, 237, 0.65);
        box-shadow: 0 0 30px rgba(124, 58, 237, 0.35);
        background: radial-gradient(circle, rgba(124, 58, 237, 0.12) 0%, rgba(124, 58, 237, 0) 65%);
    }

    .custom-cursor.is-clicking {
        transform: translate(-50%, -50%) scale(0.9);
        box-shadow: 0 0 18px rgba(0, 212, 255, 0.35);
    }
}

img,
svg {
    display: block;
    max-width: 100%;
}

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

button {
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

ul,
ol {
    list-style: none;
}

/* Focus visible global - Accesibilidad */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Ocultar outline cuando se usa mouse */
body.using-mouse :focus:not(:focus-visible) {
    outline: none;
}

/* Selección de texto */
::selection {
    background-color: rgba(0, 212, 255, 0.3);
    color: var(--text);
}

/* ----------------------------------------
   UTILIDADES
   ---------------------------------------- */
.text-accent {
    color: var(--accent);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ----------------------------------------
   HEADER - Sticky con glass effect
   ---------------------------------------- */
.header {
    position: fixed;
    top: var(--safe-area-top);
    left: 0;
    right: 0;
    z-index: var(--z-header);
    height: var(--header-height);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header--scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: var(--shadow-md);
}

.header__container {
    width: var(--container-width);
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* Brand / Logo */
.header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.02em;
    transition: color var(--transition-base);
}

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

.header__brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--gradient-accent);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 800;
    color: var(--bg);
}

.header__brand-text {
    display: none;
}

@media (min-width: 480px) {
    .header__brand-text {
        display: inline;
    }
}

/* Social Links */
.social-links {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

@media (min-width: 640px) {
    .social-links {
        gap: var(--space-sm);
    }
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

@media (min-width: 640px) {
    .social-link {
        padding: var(--space-sm) var(--space-md);
    }
}

.social-link:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    color: var(--text);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.social-link:active {
    transform: translateY(0);
}

.social-link__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.social-link__text {
    display: none;
}

@media (min-width: 768px) {
    .social-link__text {
        display: inline;
    }
}

/* ----------------------------------------
   MAIN - Layout fluido
   ---------------------------------------- */
.main {
    min-height: 100vh;
    padding-top: var(--header-height);
}

/* ----------------------------------------
   HERO - Arriba, above the fold
   ---------------------------------------- */
.hero {
    position: relative;
    width: var(--container-width);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-3xl) var(--container-padding) var(--space-2xl);
    overflow: visible;
}

@media (min-width: 768px) {
    .hero {
        padding: var(--space-4xl) var(--container-padding) var(--space-3xl);
    }
}

.hero__container {
    position: relative;
}

.hero__content {
    position: relative;
    z-index: var(--z-base);
    max-width: 720px;
}

/* Greeting */
.hero__greeting {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.hero__wave {
    display: inline-block;
    font-size: 1.2em;
    animation: wave 2.5s ease-in-out infinite;
    transform-origin: 70% 70%;
}

@keyframes wave {
    0%, 100% { transform: rotate(0deg); }
    10% { transform: rotate(14deg); }
    20% { transform: rotate(-8deg); }
    30% { transform: rotate(14deg); }
    40% { transform: rotate(-4deg); }
    50%, 100% { transform: rotate(0deg); }
}

/* Title */
.hero__title {
    margin-bottom: var(--space-md);
}

.hero__name {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Headline */
.hero__headline {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

/* Subtitle */
.hero__subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin-bottom: var(--space-xl);
}

/* Chips */
.hero__chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.chip:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    color: var(--text);
}

.chip__icon {
    width: 14px;
    height: 14px;
    opacity: 0.8;
}

/* Actions / CTAs */
.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

/* Decoration */
.hero__decoration {
    position: absolute;
    inset: -100px;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.hero__glow--1 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: -150px;
    right: -100px;
    opacity: 0.1;
}

.hero__glow--2 {
    width: 300px;
    height: 300px;
    background: var(--accent-secondary);
    bottom: -50px;
    left: -100px;
    opacity: 0.08;
}

.hero__glow--3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    left: 30%;
    opacity: 0.05;
}

/* ----------------------------------------
   BOTONES
   ---------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn--primary {
    background: var(--gradient-accent);
    color: var(--bg);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-strong), var(--shadow-md);
}

.btn--primary:active {
    transform: translateY(-1px);
}

.btn--secondary {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn--secondary:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.btn--secondary:active {
    transform: translateY(0);
}

.btn__icon {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn--primary:hover .btn__icon {
    transform: translateY(3px);
}

.btn--secondary:hover .btn__icon {
    transform: translateX(3px);
}

/* ----------------------------------------
   SECTION DIVIDER
   ---------------------------------------- */
.section-divider {
    width: var(--container-width);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-divider__line {
    height: 1px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--border-hover) 20%, 
        var(--border-accent) 50%, 
        var(--border-hover) 80%, 
        transparent 100%
    );
    opacity: 0.5;
}

/* ----------------------------------------
   PROYECTOS - Sección con cards grandes
   ---------------------------------------- */
.projects {
    width: var(--container-width);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-3xl) var(--container-padding) var(--space-4xl);
}

@media (min-width: 768px) {
    .projects {
        padding: var(--space-4xl) var(--container-padding);
    }
}

.projects__container {
    width: 100%;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header__label {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    margin-bottom: var(--space-md);
    background: var(--gradient-accent-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.section-header__title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.03em;
    margin-bottom: var(--space-sm);
}

.section-header__subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Projects Grid */
.projects__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
}

@media (min-width: 640px) {
    .projects__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-xl);
    }
}

@media (min-width: 1024px) {
    .projects__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-2xl);
    }
}

/* ----------------------------------------
   PROJECT CARD - Cards grandes y protagonistas
   ---------------------------------------- */
.project-card {
    position: relative;
    border-radius: var(--radius-xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.project-card.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Animación escalonada */
.project-card:nth-child(1) { transition-delay: 0.1s; }
.project-card:nth-child(2) { transition-delay: 0.2s; }
.project-card:nth-child(3) { transition-delay: 0.3s; }

.project-card__inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--transition-base);
}

.project-card:hover .project-card__inner {
    transform: translateY(-6px) scale(1.01);
}

/* Borde decorativo con gradiente animado */
.project-card__border {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 1px;
    background: linear-gradient(135deg,
        rgba(0, 212, 255, 0.5) 0%,
        rgba(124, 58, 237, 0.3) 50%,
        rgba(0, 212, 255, 0.5) 100%);
    background-size: 200% 200%;
    animation: borderGradient 4s ease infinite;
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.4;
    transition: opacity var(--transition-base);
}

.project-card:hover .project-card__border {
    opacity: 1;
}

.project-card--placeholder .project-card__border {
    background: linear-gradient(135deg,
        rgba(90, 90, 110, 0.3) 0%,
        rgba(90, 90, 110, 0.15) 50%,
        rgba(90, 90, 110, 0.3) 100%);
}

@keyframes borderGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Contenido de la card */
.project-card__content {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 320px;
    padding: var(--space-xl);
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

@media (min-width: 640px) {
    .project-card__content {
        min-height: 360px;
        padding: var(--space-2xl);
    }
}

@media (min-width: 1024px) {
    .project-card__content {
        min-height: 400px;
    }
}

.project-card:hover .project-card__content {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

/* Top section con icon y badge */
.project-card__top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* Icono de la card */
.project-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--gradient-accent-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-md);
    color: var(--accent);
    flex-shrink: 0;
}

@media (min-width: 640px) {
    .project-card__icon {
        width: 56px;
        height: 56px;
    }
}

.project-card__icon svg {
    width: 24px;
    height: 24px;
}

@media (min-width: 640px) {
    .project-card__icon svg {
        width: 28px;
        height: 28px;
    }
}

.project-card__icon--muted {
    background: rgba(90, 90, 110, 0.2);
    border-color: rgba(90, 90, 110, 0.3);
    color: var(--muted);
}

/* Info section */
.project-card__info {
    flex-grow: 1;
    margin-bottom: var(--space-lg);
}

.project-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.01em;
    margin-bottom: var(--space-sm);
}

@media (min-width: 640px) {
    .project-card__title {
        font-size: var(--font-size-2xl);
    }
}

.project-card__title--muted {
    color: var(--muted);
}

.project-card__description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
}

.project-card__description--muted {
    color: var(--muted);
}

/* Progress bar */
.project-card__progress {
    margin-bottom: var(--space-lg);
}

.progress-bar {
    width: 100%;
}

.progress-bar__track {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.progress-bar__fill {
    width: var(--progress, 0%);
    height: 100%;
    background: linear-gradient(90deg, #00d4ff 0%, #7c3aed 50%, #00d4ff 100%);
    background-size: 200% 100%;
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
    animation: progressFlow 3s linear infinite;
}

@keyframes progressFlow {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

.progress-bar__info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-bar__label {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.progress-bar__value {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--accent);
}

/* Tags */
.project-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.tag {
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-secondary);
}

/* Footer */
.project-card__footer {
    margin-top: auto;
}

.project-card__status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.project-card__status svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* Placeholder visual */
.project-card__placeholder-visual {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.placeholder-skeleton {
    height: 12px;
    background: linear-gradient(90deg, 
        rgba(90, 90, 110, 0.2) 0%, 
        rgba(90, 90, 110, 0.3) 50%, 
        rgba(90, 90, 110, 0.2) 100%);
    background-size: 200% 100%;
    border-radius: var(--radius-sm);
    animation: skeleton 2s ease-in-out infinite;
}

.placeholder-skeleton--short {
    width: 60%;
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Patrón decorativo */
.project-card__pattern {
    position: absolute;
    bottom: var(--space-xl);
    right: var(--space-xl);
    opacity: 0.3;
    transition: opacity var(--transition-base);
}

@media (min-width: 640px) {
    .project-card__pattern {
        bottom: var(--space-2xl);
        right: var(--space-2xl);
    }
}

.project-card:hover .project-card__pattern {
    opacity: 0.6;
}

/* Patrones */
.pattern-lines {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pattern-lines span {
    display: block;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.pattern-lines span:nth-child(1) { width: 40px; }
.pattern-lines span:nth-child(2) { width: 28px; }
.pattern-lines span:nth-child(3) { width: 18px; }

.pattern-dots {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.pattern-dots span {
    width: 6px;
    height: 6px;
    background: var(--muted);
    border-radius: 50%;
    opacity: 0.6;
}

.pattern-waves {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pattern-waves span {
    display: block;
    height: 3px;
    background: var(--muted);
    border-radius: 2px;
    opacity: 0.6;
}

.pattern-waves span:nth-child(1) { width: 24px; }
.pattern-waves span:nth-child(2) { width: 40px; }
.pattern-waves span:nth-child(3) { width: 20px; }

/* ----------------------------------------
   BADGE
   ---------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge--construction {
    background: rgba(251, 191, 36, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.badge__dot {
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

/* ----------------------------------------
   FOOTER
   ---------------------------------------- */
.footer {
    padding: var(--space-2xl) 0;
    padding-bottom: calc(var(--space-2xl) + var(--safe-area-bottom));
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.footer__container {
    width: var(--container-width);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .footer__container {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: var(--muted);
}

.footer__heart {
    color: #ef4444;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.footer__back-top {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.footer__back-top:hover {
    background: var(--surface-hover);
    border-color: var(--border-hover);
    color: var(--text);
    transform: translateY(-2px);
}

.footer__back-top svg {
    width: 16px;
    height: 16px;
}

/* ----------------------------------------
   ANIMACIONES - Controladas por JS
   ---------------------------------------- */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Delays escalonados para hero */
.hero [data-animate]:nth-child(1) { transition-delay: 0.1s; }
.hero [data-animate]:nth-child(2) { transition-delay: 0.2s; }
.hero [data-animate]:nth-child(3) { transition-delay: 0.3s; }
.hero [data-animate]:nth-child(4) { transition-delay: 0.4s; }
.hero [data-animate]:nth-child(5) { transition-delay: 0.5s; }
.hero [data-animate]:nth-child(6) { transition-delay: 0.6s; }

/* Respeta prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    [data-animate] {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .project-card {
        opacity: 1;
        transform: none;
    }
    
    .project-card__border {
        animation: none;
    }
    
    .badge__dot {
        animation: none;
    }
    
    .hero__wave {
        animation: none;
    }
    
    .footer__heart {
        animation: none;
    }
    
    .placeholder-skeleton {
        animation: none;
    }
}

/* ----------------------------------------
   RESPONSIVE - Mobile First + Ajustes
   ---------------------------------------- */

@media (max-width: 767px) {
    .hero__content {
        margin: 0 auto;
        text-align: center;
    }

    .hero__greeting {
        justify-content: center;
    }

    .hero__name {
        font-size: clamp(2.1rem, 7vw, 2.8rem);
    }

    .hero__headline {
        font-size: clamp(1.15rem, 4.5vw, 1.4rem);
    }

    .hero__subtitle {
        font-size: clamp(0.95rem, 3.8vw, 1.05rem);
        margin-left: auto;
        margin-right: auto;
    }

    .hero__chips,
    .hero__actions {
        justify-content: center;
    }
}

/* Extra small devices (320px) */
@media (max-width: 359px) {
    :root {
        --container-padding: 0.75rem;
    }
    
    .social-link {
        padding: var(--space-xs);
    }
    
    .social-link__icon {
        width: 16px;
        height: 16px;
    }
    
    .hero__chips {
        gap: var(--space-xs);
    }
    
    .chip {
        padding: var(--space-xs) var(--space-sm);
        font-size: var(--font-size-xs);
    }
    
    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-sm);
    }
    
    .project-card__content {
        padding: var(--space-lg);
        min-height: 280px;
    }
}

/* Small devices (360px - 479px) */
@media (min-width: 360px) and (max-width: 479px) {
    .hero__actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Medium devices (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .hero__actions {
        flex-direction: row;
    }
}

/* Tablet and up (768px+) */
@media (min-width: 768px) {
    .hero__content {
        max-width: 800px;
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .hero {
        padding: var(--space-4xl) var(--container-padding);
    }
    
    .hero__content {
        max-width: 900px;
    }
}

/* Large desktop (1200px+) */
@media (min-width: 1200px) {
    .projects__grid {
        gap: var(--space-3xl);
    }
}

/* ----------------------------------------
   PRINT STYLES
   ---------------------------------------- */
@media print {
    .header,
    .hero__decoration,
    .project-card__border,
    .project-card__pattern,
    .footer__back-top {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .project-card__content {
        border: 1px solid #ddd;
        background: white;
    }
}