/* ================================================
   SHARED DESIGN SYSTEM — Javier Guerrero Portfolio
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --bg:          #09090f;
    --surface:     #111118;
    --surface-2:   #18181f;
    --surface-3:   #202028;
    --border:      rgba(255, 255, 255, 0.07);
    --border-2:    rgba(255, 255, 255, 0.12);

    --accent:      #00d9ff;
    --accent-dim:  rgba(0, 217, 255, 0.1);
    --accent-glow: rgba(0, 217, 255, 0.25);
    --purple:      #8b5cf6;
    --purple-dim:  rgba(139, 92, 246, 0.1);

    --text-1:  #f1f5f9;
    --text-2:  #94a3b8;
    --text-3:  #64748b;

    --navbar-width: 80px;

    --r-sm:  8px;
    --r-md:  12px;
    --r-lg:  18px;
    --r-xl:  24px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text-1);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

main {
    margin-left: var(--navbar-width);
    min-height: 100vh;
}

/* ---- Page Header ---- */
.page-header {
    padding: 72px 64px 56px;
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg,
        rgba(0, 217, 255, 0.03) 0%,
        transparent 55%),
        linear-gradient(225deg,
        rgba(139, 92, 246, 0.03) 0%,
        transparent 55%);
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
}

.page-tag {
    display: inline-block;
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 14px;
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.1;
    margin-bottom: 14px;
}

.page-header p {
    font-size: 1rem;
    color: var(--text-2);
    line-height: 1.75;
    max-width: 480px;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: var(--r-md);
    font-weight: 600;
    font-size: 0.88rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.22s ease;
    border: none;
    font-family: inherit;
    letter-spacing: 0.2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #009fc2 100%);
    color: #050508;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-1);
    border: 1px solid var(--border-2);
}
.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.btn-ghost {
    background: var(--surface-2);
    color: var(--text-2);
    border: 1px solid var(--border);
}
.btn-ghost:hover {
    background: var(--surface-3);
    color: var(--text-1);
    transform: translateY(-2px);
}

/* ---- Card ---- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--r-xl);
    padding: 32px;
    transition: border-color 0.25s, box-shadow 0.25s;
}
.card:hover {
    border-color: var(--border-2);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

/* ---- Section layout ---- */
.section-wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 80px 64px;
}

.section-label {
    font-size: 0.72rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 40px;
}

/* ---- Mini footer strip ---- */
.page-footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 28px 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.page-footer p {
    font-size: 0.82rem;
    color: var(--text-3);
}

.page-footer .socials {
    display: flex;
    gap: 14px;
}

.page-footer .socials a {
    color: var(--text-3);
    font-size: 1.1rem;
    transition: color 0.2s, transform 0.2s;
    text-decoration: none;
}

.page-footer .socials a:hover {
    color: var(--accent);
    transform: translateY(-2px);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    main {
        margin-left: 0;
        padding-bottom: 70px;
    }

    .page-header {
        padding: 52px 24px 40px;
    }

    .section-wrap {
        padding: 60px 24px;
    }

    .page-footer {
        padding: 24px;
        justify-content: center;
        text-align: center;
    }
}