/* ============================================================
   VARIABLES
   ============================================================ */
:root {
    --bg-color:        #FAFAFA;
    --text-color:      #000000;
    --accent-teal:     #14B8A6;
    --accent-red:      #DC2626;
    --text-secondary:  #6B7280;
    --border-color:    #E5E7EB;
    --card-bg:         #FFFFFF;

    --font-main: 'Manrope', sans-serif;

    --transition-fast:   0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

    /* Single source of truth for layout */
    --max-width:    1200px;
    --gutter:       clamp(1.25rem, 5vw, 2rem);
    --section-gap:  clamp(2rem, 4vw, 3rem);
    --card-radius:  1rem;
    --card-pad:     clamp(1.375rem, 3vw, 2rem);

    /* Surface & border tokens */
    --bg-muted:      #F3F4F6;
    --border-hover:  #D1D5DB;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* Prevent long words / URLs from forcing horizontal overflow */
p, h1, h2, h3, h4, h5, h6, a, span, li {
    overflow-wrap: break-word;
}

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

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

/* ============================================================
   GLOBAL CONTAINER — single source of truth
   Every section's inner div.container uses these rules.
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* ============================================================
   SECTION WRAPPER — only vertical rhythm, no horizontal rules
   ============================================================ */
.section {
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
}

/* ============================================================
   SECTION DIVIDER — aligned to same edge as .container
   ============================================================ */
.section-divider {
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

.section-divider::after {
    content: '';
    display: block;
    height: 1px;
    background: var(--border-color);
    width: 100%;
}

/* ============================================================
   TYPOGRAPHY SCALE
   ============================================================ */
.section-label {
    display: block;
    font-size: clamp(0.68rem, 1.2vw, 0.75rem);
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--accent-teal);
    margin-bottom: 0.625rem;
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 2.25rem;
    color: var(--text-color);
    letter-spacing: -0.03em;
    line-height: 1.15;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.625rem;
    font-weight: 600;
    font-size: clamp(0.85rem, 1.5vw, 0.95rem);
    letter-spacing: -0.01em;
    transition: color var(--transition-fast), background-color var(--transition-fast),
        border-color var(--transition-fast), box-shadow var(--transition-fast),
        transform var(--transition-fast);
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1.125rem;
    font-size: clamp(0.78rem, 1.3vw, 0.85rem);
    border-radius: 0.5rem;
}

.btn-primary {
    background-color: var(--text-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--text-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.btn-outline:hover {
    border-color: var(--text-color);
    background-color: var(--bg-muted);
}

/* ============================================================
   NAVIGATION
   nav-container mirrors .container exactly
   ============================================================ */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background-color: rgba(250, 250, 250, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    /* Mirrors .container width constraints; adds nav-specific flex layout */
    width: 100%;
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);

    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: clamp(0.25rem, 1vw, 1rem);
    padding-top: clamp(0.8rem, 1.6vw, 1rem);
    padding-bottom: clamp(0.8rem, 1.6vw, 1rem);
}

/* Compensates for fixed nav height */
body {
    padding-top: clamp(4.9rem, 7vw, 5.75rem);
}

.nav-actions {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(0.25rem, 1vw, 0.875rem);
}

.nav-name {
    flex: 0 1 auto;
    min-width: 0;
    font-weight: 600;
    font-size: clamp(0.82rem, 1.5vw, 0.95rem);
    color: var(--text-secondary);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.nav-link {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: clamp(0.8rem, 1.4vw, 0.9rem);
    color: var(--text-secondary);
    padding: clamp(0.35rem, 0.8vw, 0.5rem) clamp(0.6rem, 1.3vw, 0.95rem);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    transition: color var(--transition-fast), border-color var(--transition-fast),
        background-color var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--text-color);
    border-color: var(--text-color);
    background-color: var(--card-bg);
}

.nav-actions .toggle-container {
    flex: 0 1 auto;
    width: fit-content;
    min-width: 0;
    margin: 0;
}

/* Standalone mode toggle section */
.mode-toggle-section {
    padding-top: 0;
    padding-bottom: clamp(1rem, 2vw, 2rem);
}

.toggle-wrapper {
    display: flex;
    justify-content: center;
}

/* ============================================================
   HERO
   ============================================================ */
.hero.section {
    text-align: center;
    padding-top: clamp(2rem, 4vw, 3.5rem);
    padding-bottom: clamp(0.75rem, 2vw, 1.5rem);
}

.hero-intro {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(0.7rem, 1.6vw, 1rem);
}

.hero-avatar {
    width: clamp(6rem, 8vw, 6.9rem);
    aspect-ratio: 1;
    margin: 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 24px rgba(17, 24, 39, 0.06);
}

.hero-avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 18%;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.08;
    margin-bottom: 0;
    letter-spacing: -0.04em;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

.hero-desc {
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Social links */
.social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.375rem 0.25rem;
    margin-top: clamp(1.25rem, 2.2vw, 1.75rem);
}

.social-links a {
    font-size: clamp(0.78rem, 1.3vw, 0.85rem);
    font-weight: 600;
    color: var(--text-secondary);
    padding: 0.375rem 0.875rem;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast),
        background-color var(--transition-fast);
    letter-spacing: 0.01em;
}

.social-links a:hover {
    color: var(--text-color);
    border-color: var(--border-color);
    background-color: var(--card-bg);
}

.toggle-container {
    --toggle-shell-pad: clamp(0.1875rem, 0.5vw, 0.3125rem);
    position: relative;
    display: flex;
    background-color: var(--bg-muted);
    border-radius: 999px;
    padding: var(--toggle-shell-pad);
    border: 1px solid var(--border-color);
}

.toggle-btn {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    padding: clamp(0.42rem, 1vw, 0.65rem) clamp(0.5rem, 1.6vw, 1.2rem);
    border-radius: 999px;
    font-weight: 700;
    font-size: clamp(0.68rem, 1.2vw, 0.9rem);
    letter-spacing: -0.01em;
    color: var(--text-secondary);
    transition: color var(--transition-smooth);
    text-align: center;
    white-space: nowrap;
}

.toggle-btn.active {
    color: var(--text-color);
}

.toggle-indicator {
    position: absolute;
    top: var(--toggle-shell-pad);
    bottom: var(--toggle-shell-pad);
    left: var(--toggle-shell-pad);
    width: calc(50% - var(--toggle-shell-pad));
    background-color: var(--card-bg);
    border-radius: 999px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.04);
    transition: transform var(--transition-smooth);
    z-index: 1;
}

[data-mode="creative"].active ~ .toggle-indicator {
    transform: translateX(100%);
}

/* ============================================================
   MODE CONTENT TRANSITIONS
   ============================================================ */
.mode-content {
    display: none;
    opacity: 0;
    transform: translateY(12px);
}

.mode-content.active {
    display: block;
    animation: fadeUp var(--transition-smooth) forwards;
}

/* ============================================================
   LOADING OVERLAY
   ============================================================ */
.loading-overlay {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    z-index: 9999;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.loader {
    width: 20px;
    aspect-ratio: 1;
    border-radius: 50%;
    background: var(--text-color, #000);
    box-shadow: 0 0 0 0 var(--text-color, #0004);
    animation: loader-pulse 1.5s infinite linear;
    position: relative;
}

.loader:before,
.loader:after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    box-shadow: 0 0 0 0 var(--text-color, #0004);
    animation: inherit;
    animation-delay: -0.5s;
}

.loader:after {
    animation-delay: -1s;
}
@keyframes loader-pulse {
    100% { box-shadow: 0 0 0 40px rgba(0, 0, 0, 0); }
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
   TEXT CONTENT (readable prose)
   ============================================================ */
.text-content p {
    margin-bottom: 1.375rem;
    color: var(--text-secondary);
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
    line-height: 1.75;
    text-align: left;
}

.text-content p:last-child {
    margin-bottom: 0;
}

/* ============================================================
   PROTECTED DOCS CARDS
   ============================================================ */
.protected-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.protected-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: var(--card-pad);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.protected-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--border-hover);
}

.protected-card h3 {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--text-color);
}

.protected-card p {
    color: var(--text-secondary);
    font-size: clamp(0.875rem, 1.2vw, 0.95rem);
    line-height: 1.65;
    flex-grow: 1;
}

/* ============================================================
   PROJECT CARDS
   ============================================================ */
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: var(--card-pad);
    padding-top: calc(var(--card-pad) + 1.25rem);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.project-card::before {
    content: '';
    position: absolute;
    left: var(--card-pad);
    top: var(--card-pad);
    width: 28px;
    height: 2px;
    background-color: var(--accent-teal);
    border-radius: 2px;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--border-hover);
}

.project-card h3 {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
}

.project-card p {
    color: var(--text-secondary);
    font-size: clamp(0.875rem, 1.2vw, 0.95rem);
    line-height: 1.65;
    flex-grow: 1;
}

.project-card .read-more {
    margin-top: auto;
}

/* ============================================================
   ARTICLE CARDS
   ============================================================ */
.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

.article-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: var(--card-pad);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.article-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: var(--border-hover);
}

.article-card h3 {
    font-size: clamp(1rem, 2vw, 1.2rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-color);
    line-height: 1.3;
}

.article-card p {
    color: var(--text-secondary);
    font-size: clamp(0.875rem, 1.2vw, 0.95rem);
    line-height: 1.65;
    flex-grow: 1;
}

.read-more {
    font-weight: 700;
    font-size: clamp(0.78rem, 1.3vw, 0.85rem);
    color: var(--accent-teal);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    letter-spacing: 0.01em;
    margin-top: 0.25rem;
}

.read-more::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.read-more:hover::after {
    transform: translateX(3px);
}

/* ============================================================
   EXPLORING / TAGS
   ============================================================ */
.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
}

.tag {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.125rem;
    border-radius: 999px;
    font-size: clamp(0.8rem, 1.3vw, 0.9rem);
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: -0.01em;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tag:hover {
    border-color: var(--accent-teal);
    color: var(--accent-teal);
}

/* ============================================================
   CREATIVE MODE — INTRO
   ============================================================ */
.logos-placeholder {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: clamp(1.75rem, 5vw, 4rem);
    margin: 0 auto 2.75rem;
}

.logo-item {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
}

.logo-item img {
    width: clamp(180px, 24vw, 320px);
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.logo-item figcaption {
    margin: 0;
    font-size: clamp(0.78rem, 1.6vw, 0.95rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ============================================================
   CREATIVE PORTFOLIO GRID
   ============================================================ */
.creative-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.creative-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.creative-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.07);
    border-color: var(--border-hover);
}

/* 2×2 image mosaic */
.mosaic {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 2px;
    aspect-ratio: 1 / 1;
    background-color: var(--border-color);
    overflow: hidden;
}

.mosaic.blurred .mosaic-item {
    filter: blur(12px);
    transform: scale(1.08);
}

.mosaic-item {
    aspect-ratio: 1 / 1;
    overflow: hidden;
    position: relative;
}

.mosaic-item:nth-child(1) { background-color: #f1f5f9; }
.mosaic-item:nth-child(2) { background-color: #eef2f7; }
.mosaic-item:nth-child(3) { background-color: #eaeff6; }
.mosaic-item:nth-child(4) { background-color: #e6ebf4; }

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.creative-card:hover .mosaic-item img {
    transform: scale(1.06);
}

.creative-card-content {
    padding: var(--card-pad);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: 0.75rem;
}

.creative-card-content h3 {
    font-size: clamp(0.95rem, 1.8vw, 1.15rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--text-color);
}

.creative-card-content p {
    color: var(--text-secondary);
    font-size: clamp(0.82rem, 1.2vw, 0.92rem);
    line-height: 1.6;
    flex-grow: 1;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-form-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    overflow: hidden;
}

.contact-form-wrapper iframe {
    display: block;
    width: 100%;
    max-width: 100%;
    border: 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 2.5rem 0;
}

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

.footer-social {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1rem;
}

.footer-social a {
    color: var(--text-secondary);
    font-size: clamp(0.85rem, 1.3vw, 0.95rem);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-social a:hover {
    color: var(--text-color);
}

.footer-copy {
    color: var(--text-secondary);
    font-size: clamp(0.82rem, 1.2vw, 0.92rem);
    margin-top: 0.25rem;
}

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(17, 24, 39, 0.45);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.modal-overlay:not([hidden]) {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    background-color: var(--card-bg);
    border-radius: 1.25rem;
    padding: 2.25rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(0, 0, 0, 0.04);
    transform: scale(0.96) translateY(8px);
    transition: transform var(--transition-smooth);
}

.modal-overlay:not([hidden]) .modal-card {
    transform: scale(1) translateY(0);
}

.modal-card h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    font-weight: 800;
    margin-bottom: 0.375rem;
    letter-spacing: -0.03em;
}

.modal-card > p {
    color: var(--text-secondary);
    font-size: clamp(0.85rem, 1.3vw, 0.95rem);
    margin-bottom: 1.75rem;
    line-height: 1.6;
}

.modal-resource-name {
    color: var(--text-color);
    font-size: clamp(1rem, 1.8vw, 1.1rem);
    font-weight: 700;
    margin-bottom: 0.85rem;
}

.modal-body input {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.625rem;
    font-family: inherit;
    font-size: clamp(0.9rem, 1.4vw, 1rem);
    font-weight: 500;
    margin-bottom: 0.5rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background-color: var(--bg-color);
    color: var(--text-color);
}

.modal-body input:focus {
    border-color: var(--text-color);
    box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.06);
}

.error-msg {
    color: var(--accent-red);
    font-size: clamp(0.78rem, 1.3vw, 0.85rem);
    font-weight: 600;
    margin-bottom: 0;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.75rem;
}

.resource-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.resource-actions .btn {
    flex: 1 1 160px;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s ease-out, transform 0.65s ease-out;
}

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

/* ============================================================
   RESPONSIVE — 640px+
   ============================================================ */
@media (min-width: 640px) {
    .protected-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================================
   RESPONSIVE — 768px (tablet)
   ============================================================ */
@media (min-width: 768px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

/* ============================================================
   RESPONSIVE — 1024px (desktop)
   ============================================================ */
@media (min-width: 1024px) {
    .article-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

/* ============================================================
   RESPONSIVE — 1280px+ (large screens)
   ============================================================ */
@media (min-width: 1280px) {
    .creative-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================================
   MOBILE — max 767px
   ============================================================ */
@media (max-width: 767px) {
    body {
        padding-top: clamp(5rem, 9vw, 5.8rem);
    }

    .nav-container {
        padding-left: clamp(0.75rem, 3.5vw, 1rem);
        padding-right: clamp(0.75rem, 3.5vw, 1rem);
        gap: clamp(0.25rem, 1.5vw, 0.625rem);
        flex-wrap: nowrap;
    }

    .nav-name {
        font-size: clamp(0.72rem, 2.8vw, 0.9rem);
        font-weight: 700;
    }

    .nav-actions {
        gap: clamp(0.25rem, 1.2vw, 0.5rem);
    }

    .nav-actions .nav-link {
        flex: 0 0 auto;
        padding: clamp(0.35rem, 1vw, 0.5rem) clamp(0.5rem, 1.6vw, 0.8rem);
        font-size: clamp(0.68rem, 2.3vw, 0.8rem);
    }

    .section {
        padding-top: clamp(2.5rem, 7vw, 4rem);
        padding-bottom: clamp(2.5rem, 7vw, 4rem);
    }

    .hero.section {
        padding-top: 4rem;
        padding-bottom: 3rem;
    }

    .hero-intro {
        gap: 0.625rem;
    }

    .hero-avatar {
        width: clamp(5.75rem, 26vw, 6.5rem);
    }

    .section-title {
        margin-bottom: 1.75rem;
    }

    .toggle-container {
        max-width: 100%;
    }

    .modal-actions {
        flex-direction: column-reverse;
    }

    .modal-actions .btn {
        width: 100%;
    }

    .resource-actions {
        flex-direction: column;
    }

    .resource-actions .btn {
        width: 100%;
    }

    .footer-content {
        gap: 2rem;
    }

    .logos-placeholder {
        gap: 1.5rem;
    }

    .logo-item img {
        width: min(72vw, 280px);
    }
}

/* ============================================================
   ERROR PAGE (404)
   ============================================================ */
.error-page {
    padding-top: 6rem;
    padding-bottom: 6rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.error-page__code {
    font-size: clamp(3rem, 10vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
}

.error-page__message {
    color: var(--text-secondary);
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
}

/* ============================================================
   SKIP LINK (accessibility)
   ============================================================ */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: var(--text-color);
    color: var(--card-bg);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 0 0 var(--card-radius) 0;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* ============================================================
   FOCUS STATES (accessibility)
   ============================================================ */
:focus-visible {
    outline: 2px solid var(--accent-teal);
    outline-offset: 3px;
    border-radius: 4px;
}