:root {
    --color-orange: #f47920;
    --color-link: #c45a10;
    --color-green: #4CAF50;
    --color-white: #ffffff;
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #eeeeee;
    --color-gray-300: #e0e0e0;
    --color-gray-600: #757575;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    --font-family: 'Lato', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: 0.3s ease;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-gray-800);
    background-color: var(--color-white);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    color: var(--color-orange);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--color-green);
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    padding-top: 0.4rem;
}

.logo img {
    height: 55px;
    width: auto;
}

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

.nav-list a {
    color: var(--color-gray-800);
    font-weight: 400;
    font-size: 1.05rem;
    text-transform: lowercase;
    padding: 0.5rem 0;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-orange);
    transition: width var(--transition);
}

.nav-list a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-gray-800);
    transition: var(--transition);
}

/* =============================================
   SECCIO INICI (portada principal)
   ============================================= */
.seccio-inici {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 0 4rem;
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

.seccio-inici h1 {
    font-size: clamp(1.6rem, 4vw, 2.8rem);
    font-weight: 300;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.inici-subtitol {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto 2rem;
}

.inici-paraules-clau {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: nowrap;
}

.paraula-clau {
    font-size: 1.4rem;
    font-weight: 500;
    color: var(--color-orange);
}

.separador {
    color: var(--color-gray-300);
    font-size: 1.5rem;
}

/* =============================================
   TITOLS DE SECCIO (comuns)
   ============================================= */
.section-title {
    font-size: 2rem;
    font-weight: 400;
    color: var(--color-gray-900);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--color-gray-600);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* =============================================
   SECCIO SERVEIS
   ============================================= */
.seccio-serveis {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0;
    background: var(--color-white);
}

.serveis-graella {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .serveis-graella {
        grid-template-columns: 1fr;
    }
}

/* VARIANT 1: Icona a dalt (original) */
.servei-targeta.servei-variant-1 {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
}

.servei-targeta.servei-variant-1:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-orange);
}

.servei-targeta.servei-variant-1 .servei-icona {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-orange), #ff9a56);
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    color: var(--color-white);
}

.servei-targeta.servei-variant-1 h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.servei-targeta.servei-variant-1 p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* VARIANT 2: Icona al costat del títol */
.servei-targeta.servei-variant-2 {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    padding: 2rem;
    transition: var(--transition);
}

.servei-targeta.servei-variant-2:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-orange);
}

.servei-targeta.servei-variant-2 .servei-icona {
    display: none;
}

.servei-targeta.servei-variant-2 h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.servei-targeta.servei-variant-2 h3::before {
    content: '';
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-orange), #ff9a56);
    border-radius: 6px;
    flex-shrink: 0;
}

.servei-targeta.servei-variant-2 p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
    padding-left: 52px;
}

/* VARIANT 3: Franja lateral amb icona a dalt */
.servei-targeta.servei-variant-3 {
    display: flex;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.servei-targeta.servei-variant-3:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-orange);
}

.servei-targeta.servei-variant-3 .servei-icona {
    width: 50px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 2.05rem;
    background: linear-gradient(135deg, var(--color-orange), #ff9a56);
    color: var(--color-white);
    flex-shrink: 0;
}

.servei-targeta.servei-variant-3 .servei-icona svg {
    width: 24px;
    height: 24px;
}

.servei-targeta.servei-variant-3 .servei-contingut {
    padding: 1.5rem;
    flex: 1;
}

.servei-targeta.servei-variant-3 h3 {
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.servei-targeta.servei-variant-3 p {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
    text-align: justify;
}

/* =============================================
   SECCIO TREBALLS (portfolio)
   ============================================= */
.seccio-treballs {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0;
    background: var(--color-gray-50);
}

.viewport-selector {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.viewport-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--color-gray-600);
    transition: var(--transition);
}

.viewport-btn:hover {
    border-color: var(--color-orange);
    color: var(--color-orange);
}

.viewport-btn.active {
    background: var(--color-orange);
    border-color: var(--color-orange);
    color: var(--color-white);
}

.treballs-graella {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.treball-targeta {
    background: var(--color-white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: var(--transition);
}

.treball-targeta:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.treball-preview {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--color-gray-100);
}

.treball-preview iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 1440px;
    height: 900px;
    transform: scale(0.255);
    transform-origin: top left;
    border: none;
    pointer-events: none;
}

.treball-preview.tablet-view {
    height: 240px;
}

.treball-preview.tablet-view iframe {
    width: 768px;
    height: 1024px;
    left: 50%;
    transform: translateX(-50%) scale(0.30);
    transform-origin: top center;
}

.treball-preview.mobile-view {
    height: 300px;
}

.treball-preview.mobile-view iframe {
    width: 375px;
    height: 812px;
    left: 50%;
    transform: translateX(-50%) scale(0.35);
    transform-origin: top center;
}

.treball-info {
    padding: 1.25rem;
}

.treball-info h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.treball-info p {
    font-size: 0.9rem;
    color: var(--color-gray-600);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.5;
    min-height: 2.7em;
}

.treball-overlay {
    position: absolute;
    inset: 0;
    background: rgba(244, 121, 32, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.treball-targeta:hover .treball-overlay {
    opacity: 1;
}

.treball-overlay span {
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.95rem;
}

/* =============================================
   SECCIO CONTACTE
   ============================================= */
.seccio-contacte {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 6rem 0;
    background: var(--color-white);
    text-align: center;
}

.contacte-text {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: 0.75rem;
    line-height: 1.7;
}

.contacte-text a {
    color: var(--color-link);
}

.contacte-text strong {
    color: var(--color-gray-800);
}

.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: var(--color-gray-300);
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--color-orange);
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 1rem;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    position: relative;
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.modal-legal {
    max-width: 700px;
}

.modal-legal .modal-body {
    overflow-y: auto;
    max-height: calc(90vh - 100px);
    padding-right: 1rem;
}

.preview-modal-content {
    max-width: 95vw;
    width: 100%;
    height: 90vh;
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-gray-600);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--color-gray-100);
    color: var(--color-gray-900);
}

.modal h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-gray-900);
    padding-right: 2rem;
}

.modal-body {
    color: var(--color-gray-600);
    font-size: 0.95rem;
    text-align: justify;
}

.modal-body p {
    margin-bottom: 1rem;
}

.modal-body ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.5rem 0 1rem;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--color-gray-200);
    margin-bottom: 1rem;
}

.preview-header-info {
    flex: 1;
    min-width: 200px;
}

.preview-header-info h3 {
    margin: 0 0 0.25rem 0;
    font-size: 1.25rem;
}

.preview-header-info p {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    margin: 0;
}

.preview-header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.preview-modal-content .modal-close {
    position: static;
    flex-shrink: 0;
}

.preview-viewport-btns {
    display: flex;
    gap: 0.25rem;
    background: var(--color-gray-100);
    padding: 0.25rem;
    border-radius: var(--radius);
}

.preview-vp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    color: var(--color-gray-600);
    transition: var(--transition);
}

.preview-vp-btn:hover {
    background: var(--color-gray-200);
    color: var(--color-gray-800);
}

.preview-vp-btn.active {
    background: var(--color-orange);
    color: var(--color-white);
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-orange);
    color: var(--color-white);
}

.btn-primary:hover {
    background: #e06a15;
    color: var(--color-white);
}

.preview-viewport {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    background: var(--color-gray-100);
    border-radius: var(--radius);
    overflow: hidden;
    padding: 1rem;
}

.preview-viewport iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: var(--color-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    transition: width var(--transition);
}

@media (min-width: 769px) and (max-width: 1100px) {
    .treball-preview iframe {
        transform: scale(0.36);
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: 1rem;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-list {
        flex-direction: column;
        gap: 0;
    }

    .nav-list li {
        border-bottom: 1px solid var(--color-gray-100);
    }

    .nav-list a {
        display: block;
        padding: 1rem 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .seccio-inici {
        padding: 5rem 0 3rem;
    }

    .seccio-serveis, .seccio-treballs, .seccio-contacte {
        padding: 5rem 0 4rem;
        min-height: auto;
    }

    .serveis-graella {
        grid-template-columns: 1fr;
    }

    .treballs-graella {
        grid-template-columns: 1fr;
    }

    .preview-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .preview-modal-content {
        padding: 0.75rem;
    }

    .viewport-btn span {
        display: none;
    }

    .viewport-btn {
        padding: 0.75rem;
    }

    .viewport-btn[data-width="100%"] {
        display: none;
    }
    
    .preview-vp-btn[data-width="100%"] {
        display: none;
    }
}

@media (max-width: 480px) {
    .viewport-btn[data-width="768px"] {
        display: none;
    }
    
    .preview-vp-btn[data-width="768px"] {
        display: none;
    }
}

@media (max-width: 480px) {
    .seccio-inici h1 {
        font-size: 1.5rem;
    }

    .paraula-clau {
        font-size: 1rem;
    }
    
    .separador {
        font-size: 1rem;
    }
    
    .inici-paraules-clau {
        gap: 0.5rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-gray-400);
}

.loading-spinner::after {
    content: '';
    width: 30px;
    height: 30px;
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-orange);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}