/* ============================================================
   PORTAFOLIO PERSONAL - ESTILOS PRINCIPALES
   Fuente: Outfit (Google Fonts)
   Paleta: Dark theme con acentos violeta/cian
   Layout: Flexbox y Grid
   ============================================================ */

/* === VARIABLES CSS (Custom Properties) === */
:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #12121a;
    --color-bg-card: #1a1a2e;
    --color-bg-card-hover: #1f1f35;
    --color-surface: #16162a;
    --color-border: rgba(139, 92, 246, 0.15);
    --color-border-hover: rgba(139, 92, 246, 0.4);
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-heading: #f8fafc;
    --color-primary: #8b5cf6;
    --color-primary-light: #a78bfa;
    --color-primary-dark: #7c3aed;
    --color-accent: #06b6d4;
    --color-accent-light: #22d3ee;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-gradient-1: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --color-gradient-2: linear-gradient(135deg, #7c3aed 0%, #2563eb 50%, #06b6d4 100%);
    --color-gradient-text: linear-gradient(90deg, #a78bfa, #22d3ee);
    --font-family: 'Outfit', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3.5rem;
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.15);
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --max-width: 72rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-light);
}

ul {
    list-style: none;
}

/* === HEADER === */
.header {
    background-color: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text-heading);
    font-size: var(--font-size-xl);
    font-weight: 700;
    transition: transform var(--transition-fast);
}

.header__logo:hover {
    transform: scale(1.05);
    color: var(--color-text-heading);
}

.header__logo-icon {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.header__logo-accent {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === NAV === */
.nav {
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 2rem;
    position: sticky;
    top: 3.5rem;
    z-index: 99;
}

.nav__container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.nav__list {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nav__item {
    list-style: none;
}

.nav__link {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all var(--transition-base);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0.25rem;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: var(--color-gradient-1);
    border-radius: 1px;
    transition: transform var(--transition-base);
}

.nav__link:hover {
    color: var(--color-text-heading);
    background-color: rgba(139, 92, 246, 0.08);
}

.nav__link:hover::after {
    transform: translateX(-50%) scaleX(1);
}

/* === SECTIONS === */
.section {
    padding: 5rem 2rem;
}

.section__container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section__title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-heading);
    text-align: center;
    margin-bottom: 0.5rem;
    background: var(--color-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section__subtitle {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    margin-bottom: 3rem;
    font-weight: 300;
}

/* === HERO SECTION (Sobre Mí) === */
.section--hero {
    padding-top: 6rem;
    padding-bottom: 6rem;
    background: radial-gradient(ellipse at 30% 50%, rgba(139, 92, 246, 0.08) 0%, transparent 70%),
                radial-gradient(ellipse at 70% 50%, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero__content {
    flex: 1;
    max-width: 36rem;
}

.hero__greeting {
    font-size: var(--font-size-lg);
    color: var(--color-primary-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-text-heading);
    line-height: 1.1;
    margin-bottom: 0.75rem;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    font-weight: 500;
    background: var(--color-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.hero__description {
    color: var(--color-text-muted);
    font-size: var(--font-size-base);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero__cta {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    background: var(--color-gradient-1);
    color: #fff;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-md);
    letter-spacing: 0.02em;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.hero__cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
    color: #fff;
}

.hero__image-wrapper {
    flex: 0 0 auto;
    position: relative;
}

.hero__image {
    width: 20rem;
    height: 20rem;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid rgba(139, 92, 246, 0.3);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.hero__image-glow {
    position: absolute;
    inset: -1rem;
    border-radius: 50%;
    background: var(--color-gradient-1);
    opacity: 0.15;
    filter: blur(40px);
    z-index: 0;
    animation: pulse-glow 4s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
    0% { opacity: 0.1; transform: scale(0.95); }
    100% { opacity: 0.2; transform: scale(1.05); }
}

/* === PROJECT CARDS (Tarjetas) === */
.section--projects {
    background-color: var(--color-bg-alt);
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

.card:hover {
    transform: translateY(-8px);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
}

.card__image-wrapper {
    position: relative;
    overflow: hidden;
    height: 14rem;
}

.card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card:hover .card__image {
    transform: scale(1.08);
}

.card__overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.card__tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(139, 92, 246, 0.85);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
    backdrop-filter: blur(8px);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.card__content {
    padding: 1.5rem;
}

.card__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 0.75rem;
}

.card__description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.card__techs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.card__tech {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--color-primary-light);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.card:hover .card__tech {
    background-color: rgba(139, 92, 246, 0.15);
    border-color: rgba(139, 92, 246, 0.35);
}

/* === SKILLS SECTION (Habilidades) === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
    gap: 2rem;
}

.skills-column {
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all var(--transition-base);
}

.skills-column:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
}

.skills-column__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skills-column__icon {
    font-size: var(--font-size-2xl);
}

/* Skills Table */
.skills-table {
    width: 100%;
    border-collapse: collapse;
}

.skills-table th,
.skills-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: var(--font-size-sm);
}

.skills-table th {
    color: var(--color-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: var(--font-size-xs);
    border-bottom: 1px solid var(--color-border);
}

.skills-table td {
    color: var(--color-text);
    border-bottom: 1px solid rgba(139, 92, 246, 0.07);
}

.skills-table tr:last-child td {
    border-bottom: none;
}

.skill-level {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.03em;
}

.skill-level--advanced {
    background-color: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.skill-level--intermediate {
    background-color: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.25);
}

/* Skills List */
.skills-list__item {
    padding: 0.6rem 0;
    color: var(--color-text);
    font-size: var(--font-size-sm);
    border-bottom: 1px solid rgba(139, 92, 246, 0.07);
    position: relative;
    padding-left: 1.25rem;
    transition: color var(--transition-fast);
}

.skills-list__item:last-child {
    border-bottom: none;
}

.skills-list__item::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary-light);
    font-size: var(--font-size-sm);
}

.skills-list__item:hover {
    color: var(--color-primary-light);
}

/* === CONTACT FORM (Contacto) === */
.section--contact {
    background-color: var(--color-bg-alt);
}

.form {
    max-width: 42rem;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form__group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form__group--full {
    grid-column: 1 / -1;
}

.form__label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    letter-spacing: 0.02em;
}

.form__input,
.form__textarea {
    width: 100%;
    padding: 0.875rem 1.25rem;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    outline: none;
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: rgba(148, 163, 184, 0.5);
}

.form__input:focus,
.form__textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.form__textarea {
    resize: vertical;
    min-height: 8rem;
}

.form__submit {
    display: inline-block;
    width: 100%;
    padding: 1rem 2rem;
    background: var(--color-gradient-1);
    color: #fff;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    letter-spacing: 0.03em;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.form__submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.5);
}

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

/* === MOVIES SECTION (Películas) === */
.movies {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.movie {
    display: flex;
    gap: 2rem;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.movie:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateX(8px);
}

.movie__image-wrapper {
    flex: 0 0 16rem;
    position: relative;
    overflow: hidden;
}

.movie__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.movie:hover .movie__image {
    transform: scale(1.05);
}

.movie__rank {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: var(--color-gradient-1);
    color: #fff;
    font-weight: 700;
    font-size: var(--font-size-sm);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.movie__content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.movie__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-heading);
    margin-bottom: 0.25rem;
}

.movie__year {
    color: var(--color-primary-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: 1rem;
}

.movie__description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

/* === FOOTER === */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: 3rem 2rem 1.5rem;
}

.footer__container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.footer__logo:hover {
    color: var(--color-text-heading);
}

.footer__logo-icon {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.footer__logo-accent {
    background: var(--color-gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer__tagline {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer__heading {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer__social,
.footer__nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer__social-link,
.footer__nav-link {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    position: relative;
    display: inline-block;
}

.footer__social-link:hover,
.footer__nav-link:hover {
    color: var(--color-primary-light);
    transform: translateX(4px);
}

.footer__bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    text-align: center;
}

.footer__copyright {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    font-weight: 300;
}

/* === ANIMATIONS === */

/* Fade-in animation for sections */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeInUp 0.8s ease-out both;
}

/* === RESPONSIVE DESIGN === */

/* Tablets */
@media (max-width: 64rem) {
    :root {
        --font-size-5xl: 2.75rem;
        --font-size-3xl: 1.75rem;
    }

    .hero {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero__content {
        max-width: 100%;
    }

    .hero__image {
        width: 16rem;
        height: 16rem;
    }

    .footer__content {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer__brand {
        grid-column: 1 / -1;
    }

    .movie {
        flex-direction: column;
    }

    .movie__image-wrapper {
        flex: 0 0 auto;
        height: 14rem;
    }
}

/* Mobile */
@media (max-width: 40rem) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.25rem;
    }

    .section {
        padding: 3rem 1.25rem;
    }

    .header {
        padding: 0.75rem 1rem;
    }

    .nav {
        padding: 0.5rem 1rem;
    }

    .nav__list {
        gap: 0.25rem;
    }

    .nav__link {
        padding: 0.4rem 0.75rem;
        font-size: var(--font-size-xs);
    }

    .hero__image {
        width: 12rem;
        height: 12rem;
    }

    .section--hero {
        min-height: auto;
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .form {
        grid-template-columns: 1fr;
    }

    .movie__image-wrapper {
        height: 12rem;
    }

    .footer__content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}