/* ============================================
   Dani Albert - Portfolio v1.0
   Tema oscuro con estética de programador
   ============================================ */

:root {
    --bg: #0d1117;
    --bg-soft: #161b22;
    --bg-card: #1c2128;
    --border: #30363d;
    --text: #c9d1d9;
    --text-muted: #8b949e;
    --accent-blue: #58a6ff;
    --accent-green: #7ee787;
    --accent-purple: #d2a8ff;
    --accent-red: #ff7b72;
    --font-body: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', monospace;
    --radius: 12px;
    --transition: 0.3s ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

.container {
    width: min(90%, 1100px);
    margin: 0 auto;
}

/* Fondo con líneas de código */
.code-rain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
    opacity: 0.04;
    font-family: var(--font-mono);
    font-size: 14px;
    white-space: pre;
    overflow: hidden;
    color: var(--accent-green);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 5%;
    z-index: 100;
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.header--scrolled {
    border-color: var(--border);
}

.logo {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.logo__tag {
    color: var(--accent-blue);
}

.logo__text {
    color: var(--text);
}

.nav__menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav__link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    position: relative;
    transition: color var(--transition);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transition: width var(--transition);
}

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

.nav__link:hover::after {
    width: 100%;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: transform 0.3s, opacity 0.3s;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    padding: 8rem 5% 4rem;
    position: relative;
}

.hero__content {
    max-width: 620px;
}

.hero__eyebrow {
    font-family: var(--font-mono);
    color: var(--accent-green);
    margin-bottom: 1rem;
}

.hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero__name {
    color: var(--accent-blue);
}

.hero__role {
    color: var(--accent-purple);
}

.cursor {
    color: var(--accent-green);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.hero__description {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.hero__description strong {
    color: var(--text);
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

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

.btn--primary {
    background: var(--accent-green);
    color: #0d1117;
    box-shadow: 0 0 20px rgba(126, 231, 135, 0.2);
}

.btn--primary:hover {
    box-shadow: 0 0 30px rgba(126, 231, 135, 0.35);
}

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

.btn--ghost:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn--full {
    width: 100%;
}

/* Terminal */
.terminal {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform var(--transition);
}

.terminal:hover {
    transform: perspective(1000px) rotateY(0) rotateX(0);
}

.terminal__header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

.terminal__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal__dot--red { background: var(--accent-red); }
.terminal__dot--yellow { background: #e3b341; }
.terminal__dot--green { background: var(--accent-green); }

.terminal__title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.terminal__body {
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    min-height: 180px;
}

.terminal__prompt {
    color: var(--accent-green);
    margin-right: 0.5rem;
}

.terminal__output {
    margin-top: 0.75rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-indicator span {
    width: 4px;
    height: 8px;
    background: var(--accent-green);
    border-radius: 2px;
    animation: scrollBounce 1.5s infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.4; }
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section__header {
    margin-bottom: 3rem;
}

.section__tag {
    display: inline-block;
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.section__title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--text);
}

/* About */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about__text p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.about__list {
    list-style: none;
    margin-top: 1.5rem;
    display: grid;
    gap: 0.75rem;
}

.about__list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text);
}

.about__bullet {
    color: var(--accent-green);
}

.about__stats {
    display: grid;
    gap: 1rem;
}

.stat-card {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), border-color var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
}

.stat-card__number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--accent-blue);
}

.stat-card__label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Skills */
.skills__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.skill-card {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition);
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
}

.skill-card__icon {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent-purple);
    margin-bottom: 1rem;
}

.skill-card__title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.skill-card__text {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
}

.skill-card__bar {
    height: 6px;
    background: var(--bg-card);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.skill-card__bar::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    border-radius: 3px;
    transition: width 1.2s ease-out;
}

.skill-card.animated .skill-card__bar::after {
    width: var(--bar-width);
}

/* Work */
.work__list {
    display: grid;
    gap: 1.5rem;
}

.project {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1.5rem;
    align-items: center;
    transition: transform var(--transition), border-color var(--transition);
}

.project:hover {
    transform: translateX(10px);
    border-color: var(--accent-green);
}

.project__meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 140px;
}

.project__number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.project__tag {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.project__title {
    font-size: 1.35rem;
    margin-bottom: 0.5rem;
}

.project__desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.project__tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    list-style: none;
}

.project__tech li {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--accent-green);
}

/* Contact */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact__info p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact__email {
    display: inline-flex;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--accent-blue);
    margin-bottom: 2rem;
    position: relative;
}

.contact__email::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.contact__email:hover::after {
    transform: scaleX(1);
}

.contact__social {
    display: flex;
    gap: 1rem;
}

.contact__social a {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.contact__social a:hover {
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-3px);
}

.contact__form {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
}

.form__group {
    margin-bottom: 1.25rem;
}

.form__group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.form__group input,
.form__group textarea {
    width: 100%;
    padding: 0.9rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form__group input:focus,
.form__group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

.form__group textarea {
    resize: vertical;
    min-height: 140px;
}

.form__note {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form__note a {
    color: var(--accent-blue);
    text-decoration: underline;
}

.form__note code {
    background: var(--bg-card);
    padding: 0.15rem 0.35rem;
    border-radius: 4px;
    font-family: var(--font-mono);
}

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* Animaciones scroll */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mensajes flash */
.flash {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    z-index: 99;
    padding: 1rem 0;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    text-align: center;
    animation: slideDown 0.4s ease-out;
}

@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.flash--success {
    background: rgba(46, 160, 67, 0.15);
    color: var(--accent-green);
    border-bottom: 1px solid rgba(126, 231, 135, 0.3);
}

.flash--error {
    background: rgba(248, 81, 73, 0.15);
    color: var(--accent-red);
    border-bottom: 1px solid rgba(255, 123, 114, 0.3);
}

/* Honeypot anti-spam */
.form__group--honeypot {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    width: 0;
    overflow: hidden;
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero__actions {
        justify-content: center;
    }

    .terminal {
        transform: none;
        max-width: 500px;
        margin: 0 auto;
    }

    .about__grid,
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .project {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .project__tech {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .nav__toggle {
        display: flex;
    }

    .nav__menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: min(280px, 80%);
        height: calc(100vh - 70px);
        background: var(--bg-soft);
        border-left: 1px solid var(--border);
        flex-direction: column;
        padding: 2rem;
        transition: right 0.3s ease;
    }

    .nav__menu.open {
        right: 0;
    }

    .nav__toggle[aria-expanded="true"] span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav__toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }

    .nav__toggle[aria-expanded="true"] span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero__title {
        font-size: 2rem;
    }

    .section {
        padding: 4rem 0;
    }
}