/* ============================================================
   Mathieu Berthier - Portfolio
   Fonts: Outfit (sans-serif) + Ovo (serif)
   ============================================================ */

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

html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    color: #1a1a1a;
    background: #fff;
    line-height: 1.6;
    overflow-x: clip;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul {
    list-style: none;
}

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

/* ---------- Background Decoration ---------- */
.bg-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 90%;
    height: 100vh;
    background: radial-gradient(ellipse at 70% 20%, rgba(184, 32, 230, 0.08) 0%, rgba(218, 125, 32, 0.05) 40%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    transform: translateZ(0);
}

/* ---------- Utility ---------- */
.font-ovo {
    font-family: 'Ovo', serif;
}

/* ---------- NAVBAR ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.25rem;
    z-index: 100;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    transform: translateZ(0);
}

.navbar-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.06);
}

.nav-links {
    display: none;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 3rem;
    border-radius: 9999px;
    font-family: 'Ovo', serif;
    font-size: 0.95rem;
    transition: background 0.3s, box-shadow 0.3s;
}

.nav-links-pill {
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.06);
}

.nav-links li a {
    transition: color 0.3s;
}

.nav-links li a:hover {
    color: #6b7280;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Hamburger */
.menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #1a1a1a;
    border-radius: 2px;
    transition: transform 0.3s;
}

/* Mobile menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 16rem;
    height: 100vh;
    background: #fff5f7;
    padding: 5rem 2.5rem;
    z-index: 200;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.08);
    will-change: transform;
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-menu-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #1a1a1a;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    font-family: 'Ovo', serif;
    font-size: 1.05rem;
}

.mobile-menu ul li a:hover {
    color: #7c3aed;
}

/* ---------- HERO ---------- */
.hero {
    width: 92%;
    max-width: 48rem;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
    padding: 2rem 0;
}

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

.hero-photo {
    width: 8rem;
    height: 8rem;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
}

.hero-greeting {
    font-family: 'Ovo', serif;
    font-size: 1.25rem;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-family: 'Ovo', serif;
    font-size: 2rem;
    font-weight: 400;
    line-height: 1.15;
}

.hero-subtitle {
    font-family: 'Ovo', serif;
    max-width: 40rem;
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.7;
}

.hero-location {
    font-family: 'Ovo', serif;
    font-size: 0.9rem;
    color: #9ca3af;
    letter-spacing: 0.02em;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 2.5rem;
    border-radius: 9999px;
    font-size: 0.95rem;
    font-family: 'Outfit', sans-serif;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    border: none;
    white-space: nowrap;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, #b820e6 0%, #da7d20 100%);
    color: #fff;
}

.btn-primary:hover {
    box-shadow: 0 4px 20px rgba(184, 32, 230, 0.3);
}

.btn-secondary {
    background: #fff;
    color: #374151;
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background: rgba(241, 245, 249, 0.7);
}


/* ---------- SECTIONS (shared) ---------- */
.section {
    width: 100%;
    padding: 3rem 6%;
    scroll-margin-top: 5rem;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
    font-family: 'Ovo', serif;
    color: #6b7280;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-family: 'Ovo', serif;
    font-weight: 400;
}

.section-description {
    text-align: center;
    max-width: 42rem;
    margin: 1.25rem auto 3rem;
    font-family: 'Ovo', serif;
    color: #4b5563;
    line-height: 1.7;
}

/* ---------- SERVICES ---------- */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.service-card {
    border: 1px solid #d1d5db;
    border-radius: 0.75rem;
    padding: 2rem;
    cursor: default;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.4s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    background-color: #fcf4ff;
}

.service-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: #7c3aed;
}

.service-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.75rem;
}

.service-desc {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.service-tags li {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: #f3f4f6;
    border-radius: 9999px;
    color: #6b7280;
    font-weight: 500;
}

/* Tools */
.tools-title {
    font-family: 'Ovo', serif;
    color: #374151;
    margin: 2rem 0 1rem;
    text-align: center;
    font-size: 1rem;
}

.tools-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
}

.tool-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-width: 3.5rem;
    height: 2.75rem;
    padding: 0 1rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    cursor: default;
    transition: transform 0.4s;
    font-size: 0.8rem;
    font-weight: 500;
    color: #4b5563;
}

.tool-item svg {
    flex-shrink: 0;
}

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

/* ---------- EXPERIENCE ---------- */
.experience-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1rem;
}

.experience-card {
    border: 1px solid #d1d5db;
    border-radius: 0.75rem;
    padding: 1.75rem;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.4s ease;
}

.experience-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    background-color: #fcf4ff;
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.exp-company {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
}

.exp-role {
    font-size: 0.9rem;
    color: #7c3aed;
    font-weight: 500;
    margin-top: 0.15rem;
}

.exp-date {
    font-size: 0.8rem;
    color: #9ca3af;
    white-space: nowrap;
    font-weight: 500;
    padding-top: 0.2rem;
}

.exp-desc {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.exp-impact {
    font-size: 0.82rem;
    color: #7c3aed;
    font-style: italic;
    margin-bottom: 1rem;
}

.exp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.exp-tags span {
    font-size: 0.72rem;
    padding: 0.2rem 0.65rem;
    background: #f3f4f6;
    border-radius: 9999px;
    color: #6b7280;
    font-weight: 500;
}

/* ---------- USE CASES ---------- */
.usecases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1rem;
}

.usecase-card {
    border-radius: 0.75rem;
    overflow: hidden;
    background: #fff;
    border: 1px solid #e5e7eb;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.usecase-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.usecase-image {
    position: relative;
    aspect-ratio: 4 / 1;
    cursor: pointer;
    overflow: hidden;
}

.usecase-overlay {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 85%;
    background: #fff;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transform: translate(-50%, 0) translateY(-0.75rem);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.usecase-card:hover .usecase-overlay {
    transform: translate(-50%, 0) translateY(-1.25rem);
}

.usecase-info h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #1a1a1a;
}

.usecase-info p {
    font-size: 0.8rem;
    color: #6b7280;
}

.usecase-content {
    padding: 1.25rem 1.5rem;
}

.usecase-content h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.5rem;
}

.usecase-content p {
    font-size: 0.88rem;
    color: #6b7280;
    line-height: 1.6;
}

/* ---------- CONTACT ---------- */
.section-contact {
    background-image: radial-gradient(ellipse at center bottom, rgba(184, 32, 230, 0.06) 0%, rgba(218, 125, 32, 0.04) 40%, transparent 70%);
}

.contact-cta {
    text-align: center;
}

.btn-linkedin {
    font-size: 1.05rem;
    padding: 0.85rem 2.5rem;
    gap: 0.75rem;
}

/* ---------- FOOTER ---------- */
.footer {
    margin-top: 4rem;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid #9ca3af;
    margin: 0 6%;
    padding: 0.75rem 0;
    font-size: 0.85rem;
    color: #6b7280;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 0.75rem;
}

.footer-links a:hover {
    color: #7c3aed;
}

/* ---------- Scroll Reveal ---------- */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.revealed {
    opacity: 1;
    transform: translateY(0);
    will-change: auto;
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* ---------- SM: >= 480px ---------- */
@media (min-width: 480px) {
    .hero-title {
        font-size: 2.75rem;
    }

    .hero-actions {
        flex-direction: row;
    }

}

/* ---------- MD: >= 768px ---------- */
@media (min-width: 768px) {
    .navbar {
        padding: 1rem 2rem;
    }

    .nav-links {
        display: flex;
    }

    .menu-toggle {
        display: none;
    }

    .section {
        padding: 4rem 8%;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-greeting {
        font-size: 1.4rem;
    }

    .section-title {
        font-size: 3rem;
    }

    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .experience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .usecases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin: 0 8%;
    }

    .footer-links {
        margin-top: 0;
    }
}

/* ---------- LG: >= 1024px ---------- */
@media (min-width: 1024px) {
    .navbar {
        padding: 1rem 2.5rem;
    }

    .nav-links {
        gap: 2rem;
    }

    .section {
        padding: 5rem 12%;
    }

    .hero-title {
        font-size: 4.1rem;
    }

    .section-title {
        font-size: 3.25rem;
    }
}

/* ---------- XL: >= 1280px ---------- */
@media (min-width: 1280px) {
    .navbar {
        padding: 1rem 8%;
    }

    .usecases-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .usecase-content {
        padding: 1rem 1.25rem;
    }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}