/* =====================================================
   Cloud Resume Challenge - Estils CSS
   Projecte educatiu ASIX
   ===================================================== */

/* Variables CSS per facilitar el manteniment */
:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #0891b2;
    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-border: #e2e8f0;
    --color-accent: #f59e0b;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

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

/* Estils base */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

/* Contenidor principal */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* =====================================================
   CAPÇALERA
   ===================================================== */
.header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.header-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

/* Avatar amb inicials (sense foto real) */
.avatar-container {
    flex-shrink: 0;
}

.avatar {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #f59e0b, #ef4444);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    border: 4px solid rgba(255, 255, 255, 0.3);
}

.avatar-initials {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.header-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-info .title {
    font-size: 1.25rem;
    font-weight: 500;
    opacity: 0.95;
}

.header-info .subtitle {
    font-size: 1rem;
    opacity: 0.85;
    margin-bottom: var(--spacing-sm);
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.9rem;
    opacity: 0.9;
}

.contact-info span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Comptador de visites */
.visitor-counter {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.counter-label {
    font-size: 0.875rem;
}

.counter-value {
    font-weight: 600;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.3);
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
}

/* =====================================================
   SECCIONS PRINCIPALS
   ===================================================== */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.section {
    background: var(--color-surface);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-border);
}

/* =====================================================
   COMPETÈNCIES TÈCNIQUES
   ===================================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background: var(--color-background);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.skill-category h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.skill-category ul {
    list-style: none;
}

.skill-category li {
    padding: 0.25rem 0;
    font-size: 0.9rem;
    color: var(--color-text-light);
    position: relative;
    padding-left: 1rem;
}

.skill-category li::before {
    content: "▸";
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* =====================================================
   CERTIFICACIONS
   ===================================================== */
.certifications-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.certification-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-background);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.certification-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.cert-badge {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.cert-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.cert-info p {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* =====================================================
   TIMELINE (FORMACIÓ)
   ===================================================== */
.timeline {
    position: relative;
    padding-left: var(--spacing-lg);
}

.timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-md);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(-1 * var(--spacing-lg) + 3px);
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 2px solid var(--color-surface);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.timeline-content .institution {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.timeline-content .date {
    font-size: 0.875rem;
    color: var(--color-secondary);
    font-weight: 500;
}

/* =====================================================
   PROJECTES
   ===================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-background);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.project-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.project-card p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

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

.tech-tags span {
    background: var(--color-primary);
    color: white;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

/* =====================================================
   IDIOMES
   ===================================================== */
.languages-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.language-item {
    display: grid;
    grid-template-columns: 100px 1fr 60px;
    align-items: center;
    gap: var(--spacing-md);
}

.language-name {
    font-weight: 500;
}

.language-level {
    height: 8px;
    background: var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}

.level-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 4px;
    transition: width 0.5s ease-out;
}

.level-text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: right;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.footer p {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.footer-small {
    margin-top: var(--spacing-xs);
    font-size: 0.75rem !important;
    opacity: 0.7;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-lg);
    }

    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .header-info h1 {
        font-size: 1.75rem;
    }

    .contact-info {
        justify-content: center;
    }

    .visitor-counter {
        position: relative;
        top: 0;
        right: 0;
        margin-top: var(--spacing-md);
        justify-content: center;
    }

    .avatar {
        width: 100px;
        height: 100px;
    }

    .avatar-initials {
        font-size: 2rem;
    }

    .language-item {
        grid-template-columns: 80px 1fr 50px;
    }
}

@media (max-width: 480px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }

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

    .section {
        padding: var(--spacing-md);
    }
}

/* =====================================================
   ANIMACIONS
   ===================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section {
    animation: fadeIn 0.5s ease-out;
}

.section:nth-child(2) { animation-delay: 0.1s; }
.section:nth-child(3) { animation-delay: 0.2s; }
.section:nth-child(4) { animation-delay: 0.3s; }
.section:nth-child(5) { animation-delay: 0.4s; }
.section:nth-child(6) { animation-delay: 0.5s; }

/* Animació per al comptador */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.counter-value.updated {
    animation: pulse 0.3s ease-in-out;
}

/* =====================================================
   MODE IMPRESSIÓ
   ===================================================== */
@media print {
    body {
        background: white;
    }

    .container {
        max-width: 100%;
    }

    .header {
        background: #333;
        print-color-adjust: exact;
        -webkit-print-color-adjust: exact;
    }

    .section {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }

    .visitor-counter {
        display: none;
    }
}