/* ============================================
   Dr. Roberto Mitelpunkt — Website Styles
   Design: Modern, sleek, warm, RTL Hebrew
   Concept: "Mind the Gap" — space, breath, openness
   ============================================ */

/* --- Custom Properties --- */
:root {
    --color-bg: #0a0a0f;
    --color-bg-alt: #111118;
    --color-surface: #1a1a24;
    --color-surface-hover: #22222e;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text: #e8e4df;
    --color-text-muted: #9a958e;
    --color-text-dim: #6b665f;
    --color-accent: #c9a84c;
    --color-accent-light: #e0c76e;
    --color-accent-glow: rgba(201, 168, 76, 0.15);
    --color-whatsapp: #25D366;
    --color-whatsapp-dark: #128C7E;
    --font-primary: 'Heebo', sans-serif;
    --font-serif: 'Frank Ruhl Libre', serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    direction: rtl;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 100px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--color-accent-glow);
}

.btn-primary svg {
    width: 20px;
    height: 20px;
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    transform: translateY(-2px);
}

/* --- Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-text-muted);
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-text);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    right: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-accent);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--color-accent) !important;
    color: var(--color-bg) !important;
    padding: 8px 24px;
    border-radius: 100px;
    font-weight: 600 !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    background: var(--color-accent-light) !important;
    transform: translateY(-1px);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 40%, rgba(201, 168, 76, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 20% 80%, rgba(201, 168, 76, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse 60% 80% at 80% 20%, rgba(100, 80, 40, 0.06) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 24px;
    border: 1px solid var(--color-accent);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 32px;
    font-family: 'Segoe UI', system-ui, sans-serif;
    direction: ltr;
}

.hero-title {
    margin-bottom: 20px;
}

.hero-name {
    display: block;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--color-text) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 24px;
    letter-spacing: 0.04em;
}

.hero-tagline {
    font-size: 1.05rem;
    color: var(--color-text-dim);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* --- Gap Divider (Conceptual Design Element) --- */
.gap-divider {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 48px 24px;
    max-width: 800px;
    margin: 0 auto;
}

.gap-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to left, var(--color-border), transparent);
}

.gap-divider .gap-line:first-child {
    background: linear-gradient(to right, var(--color-border), transparent);
}

.gap-text {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    white-space: nowrap;
    font-weight: 500;
}

/* --- Sections --- */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.section-title em {
    font-style: normal;
    color: var(--color-accent);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 16px auto 0;
    line-height: 1.7;
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 24px;
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: 16px;
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.highlight-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px;
    transition: var(--transition);
}

.highlight-card:hover {
    background: var(--color-surface-hover);
    border-color: rgba(201, 168, 76, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.highlight-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.highlight-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --- Approach Section --- */
.approach-philosophy {
    margin-bottom: 64px;
}

.philosophy-quote {
    font-family: var(--font-serif);
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: var(--color-text);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
    position: relative;
    padding: 40px;
    border-right: 3px solid var(--color-accent);
    background: linear-gradient(135deg, var(--color-accent-glow), transparent);
    border-radius: var(--radius-md);
}

.approach-pillars {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 64px;
}

.pillar {
    padding: 40px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.pillar::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to left, var(--color-accent), transparent);
    opacity: 0;
    transition: var(--transition);
}

.pillar:hover {
    border-color: rgba(201, 168, 76, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.pillar:hover::before {
    opacity: 1;
}

.pillar-number {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    margin-bottom: 16px;
    font-family: 'Segoe UI', system-ui, sans-serif;
    direction: ltr;
    display: inline-block;
}

.pillar h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.pillar p {
    color: var(--color-text-muted);
    line-height: 1.7;
}

.approach-case-study {
    max-width: 800px;
    margin: 0 auto;
}

.case-study-card {
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(201, 168, 76, 0.05) 100%);
    border: 1px solid rgba(201, 168, 76, 0.15);
    border-radius: var(--radius-lg);
    padding: 48px;
    position: relative;
}

.case-study-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 20px;
    padding: 4px 16px;
    background: var(--color-accent-glow);
    border-radius: 100px;
}

.case-study-card p {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.case-study-takeaway {
    color: var(--color-accent) !important;
    font-weight: 600;
    font-style: italic;
}

/* --- Services Section --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    border-color: rgba(201, 168, 76, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-card.featured {
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(201, 168, 76, 0.06) 100%);
}

.service-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--color-accent);
    color: var(--color-bg);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 100px;
}

.service-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    margin-bottom: 20px;
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-card p {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
    flex: 1;
}

.service-pricing {
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.price-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.price-label {
    font-size: 0.85rem;
    color: var(--color-text-dim);
}

.price-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-accent);
    font-family: 'Segoe UI', system-ui, sans-serif;
    direction: ltr;
}

.price-unit {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

.services-note {
    text-align: center;
    margin-top: 40px;
}

.services-note p {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    background: var(--color-surface);
    display: inline-block;
    padding: 12px 32px;
    border-radius: 100px;
    border: 1px solid var(--color-border);
}

/* --- Books Section --- */
.books-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.book-card {
    display: flex;
    gap: 32px;
    align-items: start;
}

.book-cover {
    flex-shrink: 0;
    width: 180px;
}

.book-cover-placeholder {
    width: 180px;
    height: 260px;
    background: linear-gradient(135deg, var(--color-accent) 0%, #8a6d2a 100%);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
    box-shadow: var(--shadow-lg), 8px -8px 0 rgba(201, 168, 76, 0.15);
    position: relative;
}

.book-img {
    width: 180px;
    height: 260px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), 8px -8px 0 rgba(201, 168, 76, 0.15);
    display: block;
}

.book-emoji {
    font-size: 2rem;
    margin-bottom: 12px;
}

.book-cover-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-bg);
    line-height: 1.5;
}

.book-info h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.book-author {
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.book-desc {
    color: var(--color-text-muted);
    line-height: 1.8;
}

.publications-list h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 24px;
}

.publications-list ul {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.publications-list li {
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.publications-list li:hover {
    border-color: rgba(201, 168, 76, 0.2);
}

.pub-title {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
    font-size: 0.95rem;
}

.pub-journal {
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

/* --- Media Section --- */
.media-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 48px;
}

.video-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.playlist-section {
    margin-bottom: 48px;
}

.playlist-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 20px;
    text-align: center;
}

.playlist-section .video-card {
    max-width: 800px;
    margin: 0 auto;
}

.media-mentions h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 20px;
    text-align: center;
}

.mentions-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.mention-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: var(--transition);
}

.mention-card:hover {
    border-color: rgba(201, 168, 76, 0.2);
    transform: translateY(-2px);
}

.mention-icon {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.mention-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.mention-card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    flex: 1;
}

a.mention-card {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    text-decoration: none;
}

a.mention-link:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.mention-cta {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-top: 16px;
    direction: rtl;
}

/* --- Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.contact-whatsapp {
    border-color: rgba(37, 211, 102, 0.3);
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(37, 211, 102, 0.06) 100%);
}

.contact-whatsapp:hover {
    border-color: var(--color-whatsapp);
    box-shadow: 0 0 40px rgba(37, 211, 102, 0.15);
}

.contact-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    color: var(--color-accent);
}

.contact-whatsapp .contact-icon {
    color: var(--color-whatsapp);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-bottom: 12px;
    direction: ltr;
}

.contact-action {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
}

.contact-whatsapp .contact-action {
    color: var(--color-whatsapp);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.social-links a {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: var(--color-text-muted);
    transition: var(--transition);
}

.social-links a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

/* --- Footer --- */
.footer {
    padding: 48px 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--color-text-dim);
    margin-bottom: 16px;
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* --- WhatsApp Float --- */
.whatsapp-float {
    position: fixed;
    bottom: 32px;
    left: 32px;
    width: 60px;
    height: 60px;
    background: var(--color-whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: whatsappPulse 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

@keyframes whatsappPulse {
    0%, 100% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 40px rgba(37, 211, 102, 0.6); }
}

/* --- Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Particles --- */
.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: floatParticle linear infinite;
}

@keyframes floatParticle {
    0% { transform: translateY(100vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.3; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-10vh) rotate(720deg); opacity: 0; }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .books-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: 1fr;
    }

    .approach-pillars {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 32px;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu a {
        font-size: 1.3rem;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .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);
    }

    .hero-name {
        font-size: 2.2rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 18px;
    }

    .section {
        padding: 60px 0;
    }

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

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

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

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

    .book-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .philosophy-quote {
        padding: 24px;
        font-size: 1.1rem;
    }

    .pillar {
        padding: 28px;
    }

    .case-study-card {
        padding: 28px;
    }

    .service-card {
        padding: 28px;
    }

    .gap-divider {
        padding: 32px 24px;
    }

    .gap-text {
        font-size: 0.65rem;
    }

    .whatsapp-float {
        bottom: 20px;
        left: 20px;
        width: 54px;
        height: 54px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .contact-card p {
        font-size: 0.85rem;
    }

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .book-img {
        width: 150px;
        height: 220px;
    }

    .book-cover-placeholder {
        width: 150px;
        height: 220px;
    }
}