/* =====================================================================
   PORTAFOLIO — SISTEMA DE DISEÑO
   Variables + componentes compartidos + overrides por página + modo oscuro.
   El interruptor de tema es el atributo [data-bs-theme] en <html>, el mismo
   que usa Bootstrap 5.3+ para retematizar sus propias utilidades.
   ===================================================================== */

/* --- 1. VARIABLES --- */
:root {
    --sidebar-width: 90px;

    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --primary-light-border: #dbeafe;
    --accent: #7c3aed;
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));

    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-alt: #f1f5f9;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;

    --dark-bg: #0f172a;
    --dark-surface: #1e293b;

    --shadow-color: rgba(15, 23, 42, 0.08);
    --shadow-color-strong: rgba(15, 23, 42, 0.14);
    --glow-primary: rgba(37, 99, 235, 0.35);
}

[data-bs-theme="dark"] {
    --primary: #60a5fa;
    --primary-hover: #3b82f6;
    --primary-light: rgba(96, 165, 250, 0.12);
    --primary-light-border: rgba(96, 165, 250, 0.28);
    --accent: #a78bfa;

    --bg: #0b1120;
    --surface: #131b2e;
    --surface-alt: #1b2440;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #263148;

    --dark-bg: #070b16;
    --dark-surface: #111a2e;

    --shadow-color: rgba(0, 0, 0, 0.35);
    --shadow-color-strong: rgba(0, 0, 0, 0.55);
    --glow-primary: rgba(96, 165, 250, 0.25);
}

/* --- 2. BASE --- */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    margin: 0;
    overflow-x: hidden;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.fw-extrabold { font-weight: 800; }
.tracking-tight { letter-spacing: -0.025em; }
.letter-spacing-1 { letter-spacing: 0.08em; }

/* Accesibilidad: enlace para saltar el sidebar e ir directo al contenido */
.skip-link {
    position: absolute;
    top: -100px;
    left: 12px;
    z-index: 2000;
    background: var(--primary);
    color: #ffffff;
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 12px;
    color: #ffffff;
}

/* Accesibilidad: anillo de foco visible y consistente para navegación por teclado */
a:focus-visible,
button:focus-visible,
.form-control:focus-visible,
.nav-icon-link:focus-visible,
.theme-toggle-btn:focus-visible,
.filter-pill:focus-visible,
.social-hero-link:focus-visible,
.social-btn:focus-visible,
.action-icon-link:focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
}

/* Animación de aparición al hacer scroll (progressive enhancement) */
.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.js .reveal.is-visible {
    opacity: 1;
    transform: none;
}
.js .reveal-group.is-visible > * {
    transition-delay: calc(var(--reveal-index, 0) * 80ms);
}

/* --- 3. SIDEBAR DOCK --- */
#sidebar {
    width: var(--sidebar-width);
    background: var(--dark-bg);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 28px 0;
    z-index: 1050;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    transition: background-color 0.25s ease;
}

.sidebar-brand {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    box-shadow: 0 4px 14px var(--glow-primary);
    transition: transform 0.2s ease;
}

.sidebar-brand:hover {
    transform: scale(1.05);
    color: #ffffff;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.nav-icon-link,
.theme-toggle-btn {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 1.3rem;
    text-decoration: none;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    background: transparent;
    border: none;
    cursor: pointer;
}

.nav-icon-link:hover,
.theme-toggle-btn:hover {
    color: #ffffff;
    background-color: var(--dark-surface);
    transform: translateY(-2px);
}

.nav-icon-link.active {
    color: #ffffff;
    background: var(--gradient-primary);
    box-shadow: 0 4px 16px var(--glow-primary);
}

/* --- 4. CONTENEDOR PRINCIPAL --- */
main {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    width: calc(100% - var(--sidebar-width));
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.section-container {
    padding: 48px 36px;
    max-width: 1240px;
    width: 100%;
    margin: 0 auto;
    flex: 1;
}

/* --- 5. COMPONENTES COMPARTIDOS --- */
.card-custom {
    background: var(--surface);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    box-shadow: 0 4px 20px -2px var(--shadow-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-custom:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 34px -8px var(--shadow-color-strong);
    border-color: var(--primary-light-border);
}

.badge-tech {
    background-color: var(--primary-light);
    color: var(--primary);
    border: 1px solid var(--primary-light-border);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Botón primario con gradiente de marca */
.btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 4px 14px var(--glow-primary);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--gradient-primary);
    filter: brightness(1.08);
    box-shadow: 0 6px 20px var(--glow-primary);
}

.btn-outline-dark {
    --bs-btn-color: var(--text-main);
    --bs-btn-border-color: var(--border-color);
    --bs-btn-hover-bg: var(--text-main);
    --bs-btn-hover-border-color: var(--text-main);
}

/* --- 6. RESPONSIVE MOBILE DOCK --- */
@media (max-width: 768px) {
    #sidebar {
        width: 100%;
        height: 65px;
        top: auto;
        bottom: 0;
        flex-direction: row;
        justify-content: space-around;
        padding: 0 16px;
        border-right: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .sidebar-brand, .sidebar-footer {
        display: none;
    }

    .sidebar-nav {
        flex-direction: row;
        justify-content: space-around;
        width: 100%;
        gap: 0;
    }

    .nav-icon-link {
        width: 44px;
        height: 44px;
        font-size: 1.15rem;
    }

    main {
        margin-left: 0;
        margin-bottom: 65px;
        width: 100%;
    }

    .section-container {
        padding: 24px 16px;
    }
}

/* =====================================================================
   HOME
   ===================================================================== */
.hero-orb {
    position: absolute;
    inset: -15%;
    background:
        radial-gradient(circle at 30% 25%, var(--glow-primary), transparent 55%),
        radial-gradient(circle at 75% 75%, rgba(124, 58, 237, 0.28), transparent 55%);
    filter: blur(30px);
    z-index: 0;
    pointer-events: none;
}

.profile-photo-frame {
    position: relative;
    z-index: 1;
    width: 260px;
    height: 260px;
    border-radius: 30px;
    padding: 8px;
    background: linear-gradient(135deg, rgba(37,99,235,0.2), rgba(124,58,237,0.12));
    box-shadow: 0 20px 40px -15px var(--shadow-color-strong);
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-photo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
    background: var(--surface);
}

.profile-photo-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 24px;
    background: var(--surface-alt);
    display: flex;
    align-items: center;
    justify-content: center;
}

.status-pulse {
    width: 8px;
    height: 8px;
    background-color: #22c55e;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
    animation: pulse-green 2s infinite;
}

@keyframes pulse-green {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.social-hero-link {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background-color: var(--surface);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.social-hero-link:hover {
    background-color: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-2px);
}

@media (max-width: 991px) {
    .profile-photo-frame {
        width: 200px;
        height: 200px;
        border-radius: 24px;
    }
    .profile-photo-img {
        border-radius: 18px;
    }
}

/* =====================================================================
   SOBRE MÍ
   ===================================================================== */
.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.skill-pill {
    background-color: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.skill-pill:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* =====================================================================
   PORTAFOLIO
   ===================================================================== */
.filter-pill {
    display: inline-flex;
    align-items: center;
    padding: 7px 16px;
    background-color: var(--surface);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.filter-pill:hover {
    background-color: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary-light-border);
    transform: translateY(-2px);
}

.filter-pill.active {
    background: var(--gradient-primary);
    color: #ffffff;
    border-color: transparent;
    box-shadow: 0 4px 12px var(--glow-primary);
}

.project-thumb-wrapper {
    height: 210px;
    background-color: var(--surface-alt);
}

.project-thumb {
    transition: transform 0.4s ease;
}

.project-card:hover .project-thumb {
    transform: scale(1.04);
}

.badge-featured {
    position: absolute;
    top: 12px;
    left: 12px;
    background-color: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    color: #facc15;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 50px;
    z-index: 2;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(2px);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 3;
}

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

.action-icon-link {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background-color: var(--surface-alt);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.action-icon-link:hover {
    background-color: var(--dark-bg);
    color: #ffffff !important;
    transform: translateY(-2px);
}

/* =====================================================================
   DETALLE DE PROYECTO
   ===================================================================== */
.project-main-image {
    transition: transform 0.4s ease;
}

.project-main-image:hover {
    transform: scale(1.015);
}

/* =====================================================================
   CURRICULUM
   ===================================================================== */
.icon-section {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.timeline-wrapper {
    position: relative;
    padding-left: 10px;
}

.timeline-node {
    position: relative;
    border-left: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.timeline-indicator {
    position: absolute;
    left: -7px;
    top: 24px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--surface);
    box-shadow: 0 0 0 3px var(--glow-primary);
}

.timeline-node:last-child {
    border-left: 2px solid transparent;
}

/* =====================================================================
   CONTACTO
   ===================================================================== */
.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    flex-shrink: 0;
}

.social-btn {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.08);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.25s ease;
}

.social-btn:hover {
    background-color: var(--primary);
    color: #ffffff;
    transform: translateY(-3px);
}

.hover-primary:hover {
    color: #93c5fd !important;
    text-decoration: underline !important;
}

.form-control {
    border-radius: 10px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--surface-alt);
    color: var(--text-main);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    background-color: var(--surface);
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-light);
    color: var(--text-main);
}
