/* ═══════════════════════════════════════════════════════════════
   AYSSA LIMA — PORTFOLIO
   Design System: "The Curated Sanctuary" (Google Stitch Export)
   Fonts: Newsreader (Display) + Plus Jakarta Sans (Body/UI)
   ═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────
   0. DESIGN TOKENS (from Stitch)
   ───────────────────────────────────── */
:root {
    /* ── Color Palette ── */
    --color-primary:              #111184;
    --color-primary-container:    #1a1ab0;
    --color-primary-fixed:        #d6d6f5;
    --color-primary-fixed-dim:    #a8a8e8;
    --color-on-primary:           #ffffff;
    --color-on-primary-container: #ffffff;

    --color-secondary:              #4e635a;
    --color-secondary-container:    #cee5da;
    --color-on-secondary:           #ffffff;
    --color-on-secondary-container: #52675e;

    --color-tertiary:              #605b57;
    --color-tertiary-container:    #79746f;

    --color-surface:                 #fbf9f5;
    --color-surface-dim:             #dbdad6;
    --color-surface-bright:          #fbf9f5;
    --color-surface-container:       #efeeea;
    --color-surface-container-high:  #eae8e4;
    --color-surface-container-highest:#e4e2de;
    --color-surface-container-low:   #f5f3ef;
    --color-surface-container-lowest:#ffffff;

    --color-on-surface:         #1b1c1a;
    --color-on-surface-variant:  #57423d;
    --color-outline:            #8a726b;
    --color-outline-variant:    #ddc0b9;

    --color-inverse-surface:    #30312e;
    --color-inverse-on-surface: #f2f0ed;
    --color-inverse-primary:    #a8a8e8;

    --color-error:              #ba1a1a;
    --color-error-container:    #ffdad6;

    --color-background:         #fbf9f5;
    --color-on-background:      #1b1c1a;

    /* ── Override Accents (Stitch) ── */
    --color-accent:        #111184;
    --color-accent-soft:   #8DA399;
    --color-accent-deep:   #0a0a5c;
    --color-accent-neutral:#FDFBF7;

    /* ── Typography ── */
    --font-display: 'Newsreader', Georgia, 'Times New Roman', serif;
    --font-body:    'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;
    --font-label:   'Plus Jakarta Sans', 'Segoe UI', system-ui, sans-serif;

    /* ── Type Scale ── */
    --text-display-lg: 3.5rem;
    --text-display-md: 2.75rem;
    --text-display-sm: 2rem;
    --text-headline-lg: 2rem;
    --text-headline-md: 1.75rem;
    --text-headline-sm: 1.5rem;
    --text-title-lg:  1.375rem;
    --text-title-md:  1.125rem;
    --text-title-sm:  1rem;
    --text-body-lg:   1rem;
    --text-body-md:   0.875rem;
    --text-body-sm:   0.8125rem;
    --text-label-lg:  0.875rem;
    --text-label-md:  0.75rem;
    --text-label-sm:  0.6875rem;

    /* ── Spacing (Scale 3) ── */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;

    /* ── Radius (Round Full) ── */
    --radius-sm:   0.75rem;
    --radius-md:   1.5rem;
    --radius-lg:   2rem;
    --radius-xl:   3rem;
    --radius-full: 9999px;

    /* ── Shadows (Ambient, Tinted) ── */
    --shadow-sm:  0 4px 16px rgba(27, 28, 26, 0.04);
    --shadow-md:  0 8px 32px rgba(27, 28, 26, 0.06);
    --shadow-lg:  0 12px 40px rgba(27, 28, 26, 0.06);
    --shadow-xl:  0 16px 56px rgba(27, 28, 26, 0.08);
    --shadow-glow:0 8px 32px rgba(17, 17, 132, 0.2);

    /* ── Transitions ── */
    --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out:  cubic-bezier(0.65, 0, 0.35, 1);
    --duration-fast:    200ms;
    --duration-normal:  350ms;
    --duration-slow:    600ms;

    /* ── Layout ── */
    --container-max: 1200px;
    --container-padding: var(--space-6);
    --header-height: 72px;
}

/* ─────────────────────────────────────
   1. RESET & BASE
   ───────────────────────────────────── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-body-lg);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-on-surface);
    background-color: var(--color-surface);
    overflow-x: hidden;
    opacity: 0;
    animation: pageLoad 0.8s var(--ease-out) 0.1s forwards;
}

@keyframes pageLoad {
    from { opacity: 0; }
    to   { opacity: 1; }
}

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

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

ul, ol {
    list-style: none;
}

button {
    font: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

::selection {
    background-color: var(--color-primary-fixed-dim);
    color: var(--color-on-surface);
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* ─────────────────────────────────────
   2. TYPOGRAPHY
   ───────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-on-surface);
}

strong {
    font-weight: 600;
    color: var(--color-primary);
}

.section-label {
    display: inline-block;
    font-family: var(--font-label);
    font-size: var(--text-label-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.section-title {
    font-size: var(--text-display-sm);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-family: var(--font-body);
    font-size: var(--text-body-lg);
    color: var(--color-on-surface-variant);
    max-width: 560px;
    line-height: 1.7;
}

.accent {
    color: var(--color-primary);
}

.accent-light {
    color: var(--color-inverse-primary);
}

/* ─────────────────────────────────────
   3. LAYOUT UTILITIES
   ───────────────────────────────────── */
.section-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

/* ─────────────────────────────────────
   4. BUTTONS
   ───────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-label);
    font-size: var(--text-label-lg);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-full);
    padding: 0.75rem 1.75rem;
    transition:
        transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out),
        filter var(--duration-normal) var(--ease-out);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: scale(1.02) translateY(-2px);
    box-shadow: 0 12px 40px rgba(17, 17, 132, 0.35);
    filter: brightness(1.18);
}

.btn-primary:active {
    transform: scale(0.98);
    filter: brightness(0.95);
}

.btn-secondary {
    background-color: var(--color-secondary-container);
    color: var(--color-on-secondary-container);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    filter: brightness(0.96);
}

.btn-secondary:active {
    transform: scale(0.98);
}

.btn-sm {
    font-size: var(--text-label-md);
    padding: 0.5rem 1.25rem;
}

.btn-lg {
    font-size: var(--text-body-lg);
    padding: 1rem 2.25rem;
}

.btn-icon {
    font-size: 1.125rem;
    transition: transform var(--duration-normal) var(--ease-out);
}

.btn:hover .btn-icon {
    transform: translateY(2px);
}

/* ─────────────────────────────────────
   5. HEADER
   ───────────────────────────────────── */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background-color: rgba(251, 249, 245, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: all var(--duration-normal) var(--ease-out);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
    background-color: rgba(251, 249, 245, 0.95);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
}

.logo {
    font-family: var(--font-display);
    font-size: var(--text-title-lg);
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--color-on-surface);
    flex-shrink: 0;
    transition: opacity var(--duration-fast) var(--ease-out);
}

.logo:hover {
    opacity: 0.7;
}

.logo-accent {
    font-style: italic;
    color: var(--color-primary);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    font-family: var(--font-label);
    font-size: var(--text-label-lg);
    font-weight: 500;
    color: var(--color-on-surface-variant);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-on-surface);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 20px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background-color var(--duration-fast);
    z-index: 1001;
}

.hamburger:hover {
    background-color: var(--color-surface-container);
}

.hamburger-line {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-on-surface);
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out);
    transform-origin: center;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ─────────────────────────────────────
   6. MOBILE NAVIGATION
   ───────────────────────────────────── */
.mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(27, 28, 26, 0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-out);
}

.mobile-nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(380px, 85vw);
    height: 100vh;
    height: 100dvh;
    background-color: var(--color-surface-container-lowest);
    z-index: 999;
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-out);
    display: flex;
    flex-direction: column;
    padding: var(--space-6);
    overflow-y: auto;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-12);
}

.mobile-nav-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background-color var(--duration-fast);
}

.mobile-nav-close:hover {
    background-color: var(--color-surface-container);
}

.mobile-nav-list {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.mobile-nav-link {
    font-family: var(--font-display);
    font-size: var(--text-display-sm);
    font-weight: 400;
    color: var(--color-on-surface);
    padding: var(--space-3) 0;
    transition: color var(--duration-fast);
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--duration-normal) var(--ease-out),
                transform var(--duration-normal) var(--ease-out),
                color var(--duration-fast);
}

.mobile-nav.active .mobile-nav-link {
    opacity: 1;
    transform: translateX(0);
}

.mobile-nav.active .mobile-nav-link:nth-child(1) { transition-delay: 100ms; }
.mobile-nav.active .mobile-nav-link:nth-child(2) { transition-delay: 150ms; }
.mobile-nav.active .mobile-nav-link:nth-child(3) { transition-delay: 200ms; }
.mobile-nav.active .mobile-nav-link:nth-child(4) { transition-delay: 250ms; }
.mobile-nav.active .mobile-nav-link:nth-child(5) { transition-delay: 300ms; }

.mobile-nav-link:hover {
    color: var(--color-primary);
}

.mobile-nav-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-top: var(--space-10);
    margin-bottom: var(--space-6);
}

.mobile-nav-socials {
    display: flex;
    gap: var(--space-4);
    color: var(--color-on-surface-variant);
}

.mobile-nav-socials a {
    transition: color var(--duration-fast);
}

.mobile-nav-socials a:hover {
    color: var(--color-primary);
}

/* ─────────────────────────────────────
   7. HERO SECTION
   ───────────────────────────────────── */
.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;

    /* Desktop background */
    background-image: url('assets/hero-desktop.webp');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: scroll;
}

/* Vignette layers — desktop */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
        /* Top — contrast under the header */
        linear-gradient(
            to bottom,
            rgba(10, 10, 50, 0.55) 0%,
            rgba(10, 10, 50, 0.20) 14%,
            transparent 32%
        ),
        /* Left — text area contrast */
        linear-gradient(
            to right,
            rgba(10, 10, 50, 0.65) 0%,
            rgba(10, 10, 50, 0.30) 30%,
            transparent 58%
        ),
        /* Right edge */
        linear-gradient(
            to left,
            rgba(10, 10, 50, 0.40) 0%,
            rgba(10, 10, 50, 0.10) 25%,
            transparent 50%
        ),
        /* Bottom — smooth transition to next section */
        linear-gradient(
            to top,
            rgba(251, 249, 245, 0.80) 0%,
            rgba(251, 249, 245, 0.22) 18%,
            transparent 38%
        );
}

/* Hero content must sit above the vignette overlay */
.hero-container {
    position: relative;
    z-index: 2;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-16) 0 var(--space-24);
}

.hero-text {
    max-width: 640px;
}

/* Large editorial headline */
.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 5.2vw, 4.2rem);
    font-weight: 400;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: #ffffff;
    text-shadow: 0 2px 20px rgba(10, 10, 60, 0.35);
    margin-bottom: var(--space-8);
}

.hero-name-highlight {
    font-style: italic;
    color: #a8a8e8;
    font-weight: 500;
    text-shadow: 0 2px 24px rgba(17, 17, 132, 0.5);
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: var(--text-body-md);
    color: rgba(255, 255, 255, 0.82);
    text-shadow: 0 1px 12px rgba(10, 10, 60, 0.4);
    line-height: 1.7;
    margin-bottom: var(--space-10);
    max-width: 400px;
}

/* Hero CTA Buttons */
.hero-cta {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.btn-hero-contact {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-label);
    font-size: var(--text-label-lg);
    font-weight: 600;
    color: var(--color-on-surface);
    background-color: var(--color-secondary-container);
    border: none;
    border-radius: var(--radius-full);
    padding: 0.8rem 1.75rem;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    text-decoration: none;
}

.btn-hero-contact:hover {
    background-color: #b8cfc5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-hero-contact:active {
    transform: scale(0.97);
}

.btn-hero-explore {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-label);
    font-size: var(--text-label-lg);
    font-weight: 500;
    color: var(--color-on-surface);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
}

.btn-hero-explore:hover {
    color: var(--color-primary);
}

.btn-hero-explore:hover .explore-arrow {
    transform: translateX(4px);
}

.explore-arrow {
    font-size: 1.1rem;
    transition: transform var(--duration-normal) var(--ease-out);
}

/* Hero Animations */
.anim-hero-line {
    opacity: 0;
    transform: translateY(24px);
    animation: heroEntrance 0.9s var(--ease-out) forwards;
    animation-delay: calc(var(--delay) * 180ms + 400ms);
}

@keyframes heroEntrance {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Vertical accent bar (bottom right) */
.hero-accent-bar {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 6px;
    height: 140px;
    background: linear-gradient(
        to bottom,
        #6C63FF,
        #4338CA
    );
    border-radius: var(--radius-full) var(--radius-full) 0 0;
}

/* ─────────────────────────────────────
   8. PROJETOS SECTION
   ───────────────────────────────────── */
.projetos {
    padding: var(--space-24) 0;
    background-color: var(--color-surface-container-low);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.project-card {
    background-color: var(--color-surface-container-lowest);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.project-image-wrapper {
    overflow: hidden;
    aspect-ratio: 4/3;
    background-color: var(--color-surface-container);
}

.project-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.project-info {
    padding: var(--space-6);
}

.project-title {
    font-family: var(--font-display);
    font-size: var(--text-headline-sm);
    font-weight: 500;
    margin-bottom: var(--space-2);
    letter-spacing: -0.01em;
}

.project-desc {
    font-size: var(--text-body-md);
    color: var(--color-on-surface-variant);
    line-height: 1.6;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clam: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tag {
    font-family: var(--font-label);
    font-size: var(--text-label-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-secondary);
    background-color: var(--color-secondary-container);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

/* ─────────────────────────────────────
   9. SOBRE MIM SECTION
   ───────────────────────────────────── */
.sobre {
    padding: var(--space-24) 0;
    background-color: var(--color-surface);
}

.sobre-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.sobre-paragraph {
    font-size: var(--text-body-lg);
    color: var(--color-on-surface-variant);
    line-height: 1.7;
    margin-bottom: var(--space-6);
}

.ferramentas {
    margin-bottom: var(--space-8);
}

.ferramentas-title {
    font-family: var(--font-body);
    font-size: var(--text-label-lg);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-on-surface);
    margin-bottom: var(--space-3);
}

.ferramentas-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.chip {
    font-family: var(--font-label);
    font-size: var(--text-label-lg);
    font-weight: 500;
    color: var(--color-on-surface);
    background-color: var(--color-surface-container-highest);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    transition: all var(--duration-fast) var(--ease-out);
}

.chip:hover {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

.sobre-socials {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    color: var(--color-on-surface-variant);
    background-color: var(--color-surface-container);
    transition: all var(--duration-fast) var(--ease-out);
}

.social-link:hover {
    color: var(--color-on-primary);
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

/* Photo Frame */
.photo-frame {
    position: relative;
    display: flex;
    justify-content: center;
}

.about-photo {
    width: 100%;
    max-width: 420px;
    height: auto;
    border-radius: var(--radius-xl);
    object-fit: cover;
    position: relative;
    z-index: 1;
}

.photo-decoration {
    position: absolute;
    top: var(--space-6);
    right: calc(-1 * var(--space-4));
    width: 100%;
    max-width: 420px;
    height: 100%;
    border-radius: var(--radius-xl);
    background: linear-gradient(
        135deg,
        var(--color-primary-fixed-dim) 0%,
        var(--color-secondary-container) 100%
    );
    opacity: 0.4;
    z-index: 0;
}

/* ─────────────────────────────────────
   10. CERTIFICADOS SECTION
   ───────────────────────────────────── */
.certificados {
    padding: var(--space-24) 0;
    background-color: var(--color-surface-container-low);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-8) 0;
}

.timeline-line {
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 0;
    background: linear-gradient(
        to bottom,
        var(--color-primary-fixed-dim),
        var(--color-primary),
        var(--color-secondary-container)
    );
    transform: translateX(-50%);
    transition: height 1.5s var(--ease-out);
    border-radius: var(--radius-full);
}

.timeline-line.animate {
    height: 100%;
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: var(--space-6);
}

.timeline-left {
    padding-right: var(--space-10);
    text-align: right;
    margin-left: 0;
}

.timeline-right {
    padding-left: var(--space-10);
    margin-left: 50%;
}

.timeline-dot {
    position: absolute;
    top: var(--space-8);
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-fixed);
    z-index: 2;
}

.timeline-left .timeline-dot {
    right: calc(-8px);
}

.timeline-right .timeline-dot {
    left: calc(-8px);
}

.timeline-card {
    background-color: var(--color-surface-container-lowest);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
    box-shadow: var(--shadow-sm);
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

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

.timeline-left .timeline-card {
    flex-direction: row-reverse;
    text-align: left;
}

.timeline-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background-color: var(--color-primary-fixed);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.timeline-icon .material-symbols-outlined {
    font-size: 24px;
}

.timeline-content {
    flex: 1;
}

.timeline-date {
    font-family: var(--font-label);
    font-size: var(--text-label-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    margin-bottom: var(--space-1);
    display: block;
}

/* Badge "Em andamento" */
.timeline-date--ongoing {
    color: var(--color-secondary);
    background-color: var(--color-secondary-container);
    border-radius: var(--radius-full);
    padding: 0.15rem 0.65rem;
    display: inline-block;
    text-transform: none;
    letter-spacing: 0.01em;
    font-size: var(--text-label-sm);
}

.timeline-title {
    font-family: var(--font-display);
    font-size: var(--text-title-md);
    font-weight: 500;
    margin-bottom: var(--space-1);
    letter-spacing: -0.01em;
}

.timeline-institution {
    font-size: var(--text-body-md);
    color: var(--color-on-surface-variant);
}

/* ─────────────────────────────────────
   10b. DESTAQUE (PARTICIPAÇÃO) SECTION
   ───────────────────────────────────── */
.destaque {
    padding: var(--space-24) 0;
    background-color: var(--color-surface);
    overflow: hidden;
}

.destaque-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: center;
    margin-bottom: var(--space-16);
}

.destaque-heading {
    font-family: var(--font-display);
    font-size: var(--text-headline-lg);
    font-weight: 500;
    letter-spacing: -0.02em;
    color: var(--color-on-surface);
    margin-bottom: var(--space-6);
    line-height: 1.25;
}

.destaque-heading strong {
    color: var(--color-primary);
}

.destaque-paragraph {
    font-size: var(--text-body-lg);
    color: var(--color-on-surface-variant);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.destaque-paragraph:last-child {
    margin-bottom: 0;
}

/* ── Photo Fade Carousel (Invisible transitions) ── */
.photo-carousel {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.carousel-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1.2s var(--ease-in-out);
    z-index: 0;
}

.carousel-photo.active {
    opacity: 1;
    z-index: 1;
}

/* ── Video Marquee (Infinite scroll, all visible) ── */
.destaque-videos {
    width: 100%;
}

.video-marquee {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.video-marquee-track {
    display: flex;
    width: max-content;
    animation: marqueeScroll 25s linear infinite;
}

.video-marquee:hover .video-marquee-track {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        /* Pula após o primeiro set (1/3 do rastro total de 3 sets) */
        transform: translateX(-33.333%);
    }
}

/* Slide adjustments for better visibility */
.video-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 40%);
    pointer-events: none;
}


.video-slide {
    flex-shrink: 0;
    width: 320px;
    margin-right: var(--space-4);
    aspect-ratio: 9/16;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: #000;
    position: relative;
}

.marquee-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ─────────────────────────────────────
   11. CTA SECTION
   ───────────────────────────────────── */
.cta-section {
    padding: var(--space-24) 0;
    background: linear-gradient(
        135deg,
        var(--color-inverse-surface) 0%,
        var(--color-accent-deep) 100%
    );
    color: var(--color-inverse-on-surface);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(17, 17, 132, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -200px;
    left: -200px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(141, 163, 153, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-heading {
    font-family: var(--font-display);
    font-size: clamp(var(--text-display-sm), 4vw, var(--text-display-lg));
    font-weight: 500;
    color: var(--color-inverse-on-surface);
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.cta-subtitle {
    font-size: var(--text-body-lg);
    color: rgba(242, 240, 237, 0.7);
    max-width: 520px;
    margin: 0 auto var(--space-10);
    line-height: 1.7;
}

.cta-actions {
    margin-bottom: var(--space-10);
}

.cta-actions .btn-primary {
    background-color: var(--color-accent);
    box-shadow: 0 8px 32px rgba(17, 17, 132, 0.35);
}

.cta-actions .btn-primary:hover {
    box-shadow: 0 12px 48px rgba(17, 17, 132, 0.5);
}

.cta-socials {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.social-link-light {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    color: rgba(242, 240, 237, 0.6);
    background-color: rgba(255, 255, 255, 0.08);
    transition: all var(--duration-fast) var(--ease-out);
}

.social-link-light:hover {
    color: var(--color-on-primary);
    background-color: var(--color-primary);
    transform: translateY(-2px);
}

/* ─────────────────────────────────────
   12. FOOTER
   ───────────────────────────────────── */
.site-footer {
    padding: var(--space-8) 0;
    background-color: var(--color-surface);
    text-align: center;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-text {
    font-family: var(--font-label);
    font-size: var(--text-body-md);
    color: var(--color-on-surface-variant);
}

/* ─────────────────────────────────────
   13. SCROLL ANIMATIONS
   ───────────────────────────────────── */
.fade-up {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children */
.projects-grid .fade-up:nth-child(1) { transition-delay: 0ms; }
.projects-grid .fade-up:nth-child(2) { transition-delay: 120ms; }
.projects-grid .fade-up:nth-child(3) { transition-delay: 240ms; }

.timeline .fade-up:nth-child(2) { transition-delay: 0ms; }
.timeline .fade-up:nth-child(3) { transition-delay: 200ms; }
.timeline .fade-up:nth-child(4) { transition-delay: 400ms; }
.timeline .fade-up:nth-child(5) { transition-delay: 600ms; }
.timeline .fade-up:nth-child(6) { transition-delay: 800ms; }
.timeline .fade-up:nth-child(7) { transition-delay: 1000ms; }

/* ─────────────────────────────────────
   14. RESPONSIVE — TABLET (768px)
   ───────────────────────────────────── */
@media (max-width: 1024px) {
    :root {
        --container-padding: var(--space-6);
    }

    .main-nav {
        display: none;
    }

    .header-actions {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-content {
        padding: var(--space-12) 0 var(--space-16);
    }

    .hero-headline {
        font-size: clamp(2.2rem, 4.5vw, 3.4rem);
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .section-title {
        font-size: var(--text-headline-lg);
    }

    .sobre-grid {
        gap: var(--space-10);
    }

    .destaque-grid {
        gap: var(--space-8);
    }

    .destaque-heading {
        font-size: var(--text-headline-md);
    }
}

/* ─────────────────────────────────────
   15. RESPONSIVE — MOBILE (768px)
   ───────────────────────────────────── */
@media (max-width: 768px) {
    :root {
        --space-24: 4rem;
        --space-16: 3rem;
    }

    .hero {
        min-height: auto;
        padding-top: calc(var(--header-height) + var(--space-6));
        padding-bottom: var(--space-16);

        /* Mobile version — portrait image */
        background-image: url('assets/hero-mobile-bg.webp');
        background-position: center top;
    }

    /* Vignette reajustada para imagem vertical — mobile */
    .hero::before {
        background:
            /* Top — header contrast */
            linear-gradient(
                to bottom,
                rgba(10, 10, 50, 0.70) 0%,
                rgba(10, 10, 50, 0.30) 12%,
                transparent 28%
            ),
            /* Bottom — suave transição */
            linear-gradient(
                to top,
                rgba(251, 249, 245, 0.90) 0%,
                rgba(251, 249, 245, 0.35) 20%,
                transparent 42%
            ),
            /* Left edge leve */
            linear-gradient(
                to right,
                rgba(10, 10, 50, 0.45) 0%,
                transparent 40%
            ),
            /* Right edge leve */
            linear-gradient(
                to left,
                rgba(10, 10, 50, 0.35) 0%,
                transparent 40%
            );
    }

    .hero-content {
        align-items: center;
        text-align: center;
        padding: var(--space-10) 0 var(--space-12);
    }

    .hero-text {
        max-width: 100%;
    }

    .hero-headline {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .hero-tagline {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
        display: flex;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .sobre-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .sobre-photo {
        order: -1;
    }

    .photo-frame {
        max-width: 320px;
        margin: 0 auto;
    }

    .photo-decoration {
        right: calc(-1 * var(--space-3));
        top: var(--space-4);
    }

    /* Timeline Mobile */
    .timeline-line {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        padding-left: calc(40px + var(--space-4));
        padding-right: 0;
        text-align: left;
    }

    .timeline-left {
        padding-right: 0;
        text-align: left;
    }

    .timeline-right {
        margin-left: 0;
    }

    .timeline-dot {
        left: 12px !important;
        right: auto !important;
    }

    .timeline-left .timeline-card {
        flex-direction: row;
        text-align: left;
    }

    .cta-heading {
        font-size: var(--text-display-sm);
    }

    .section-title {
        font-size: var(--text-headline-md);
    }

    /* Destaque Mobile */
    .destaque-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .destaque-photos {
        order: -1;
    }

    .photo-carousel {
        max-width: 360px;
        margin: 0 auto;
    }

    .destaque-heading {
        font-size: var(--text-headline-sm);
    }

    .video-slide {
        width: calc(33.333vw - 12px); 
        margin-right: 8px;
        min-width: 80px;
    }

    .video-marquee-track {
        animation-duration: 8s; 
    }

    .photo-carousel {
        aspect-ratio: 4 / 3;
        max-height: 320px;
        max-width: 100%;
    }
}

/* ─────────────────────────────────────
   16. RESPONSIVE — SMALL MOBILE (375px)
   ───────────────────────────────────── */
@media (max-width: 400px) {
    :root {
        --container-padding: var(--space-4);
    }

    .hero-name {
        font-size: 2rem;
    }

    .mobile-nav-link {
        font-size: var(--text-headline-md);
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: var(--text-label-md);
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: var(--text-label-lg);
    }

    .timeline-card {
        padding: var(--space-4);
        flex-direction: column !important;
    }
}

/* ─────────────────────────────────────
   17. RESPONSIVE — WIDE (1440px+)
   ───────────────────────────────────── */
@media (min-width: 1440px) {
    :root {
        --container-max: 1320px;
    }

    .hero-headline {
        font-size: 4.5rem;
    }
}

/* ─────────────────────────────────────
   18. PREFERS REDUCED MOTION
   ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .fade-up {
        opacity: 1;
        transform: none;
    }

    .anim-hero-line {
        opacity: 1;
        transform: none;
    }
}