/* Theme: Coral Reef - Vibrant coral oranges, turquoise waters, ocean blues, underwater serenity, tropical marine life */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&family=Lato:wght@300;400;700;900&display=swap');

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 82px;
}

body {
    font-family: 'Lato', sans-serif;
    font-size: 17.2px;
    line-height: 1.76;
    color: #1a3a52;
    background: linear-gradient(168deg, #fff8f0 0%, #ffe8d6 18%, #ffd9c0 42%, #ffcbb0 68%, #ffb89d 88%, #ffa78a 100%);
    background-attachment: fixed;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(ellipse at 15% 25%, rgba(255, 107, 74, 0.16) 0%, transparent 48%),
        radial-gradient(ellipse at 85% 75%, rgba(26, 188, 156, 0.14) 0%, transparent 52%),
        radial-gradient(ellipse at 50% 50%, rgba(52, 152, 219, 0.12) 0%, transparent 45%);
    pointer-events: none;
    z-index: 0;
    animation: coralWave 26s ease-in-out infinite;
}

@keyframes coralWave {
    0%, 100% { 
        opacity: 0.58; 
        transform: translateY(0) scale(1); 
    }
    40% { 
        opacity: 0.82; 
        transform: translateY(-22px) scale(1.05); 
    }
    75% { 
        opacity: 0.68; 
        transform: translateY(18px) scale(0.98); 
    }
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-radial-gradient(circle at 25% 35%, transparent 0px, rgba(255, 107, 74, 0.022) 18px, transparent 36px),
        repeating-radial-gradient(circle at 75% 65%, transparent 0px, rgba(26, 188, 156, 0.018) 22px, transparent 44px);
    pointer-events: none;
    z-index: 0;
}

#topnav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(16px) saturate(135%);
    border-bottom: 2.8px solid rgba(255, 107, 74, 0.26);
    box-shadow: 0 4px 24px rgba(26, 58, 82, 0.095);
    transition: all 0.36s cubic-bezier(0.34, 0.56, 0.64, 1);
}

#topnav.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 8px 36px rgba(26, 58, 82, 0.145);
    border-bottom-width: 3.5px;
}

.nav-container {
    max-width: 1460px;
    margin: 0 auto;
    padding: 0 3.6rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 82px;
}

.logo h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.68rem;
    font-weight: 800;
    color: #ff6b4a;
    margin: 0;
    letter-spacing: -0.25px;
    position: relative;
    text-shadow: 0 2px 10px rgba(255, 107, 74, 0.22);
}

.logo h1::after {
    content: '';
    position: absolute;
    bottom: -7px;
    left: 0;
    width: 48%;
    height: 3.8px;
    background: linear-gradient(90deg, #ff6b4a 0%, #ff8c6b 100%);
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(255, 107, 74, 0.35);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.42rem;
}

.nav-menu li a {
    display: block;
    padding: 0.78rem 1.52rem;
    color: #2c5f7f;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.92rem;
    transition: all 0.34s cubic-bezier(0.34, 0.56, 0.64, 1);
    position: relative;
    letter-spacing: 0.48px;
    border-radius: 20px;
}

.nav-menu li a::before {
    content: '';
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2.8px;
    background: linear-gradient(90deg, #ff6b4a 0%, #1abc9c 100%);
    transition: width 0.34s ease;
    border-radius: 2px;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 74, 0.12) 0%, rgba(26, 188, 156, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.34s ease;
    border-radius: 20px;
}

.nav-menu li a:hover::before,
.nav-menu li a.active::before {
    width: 52%;
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    opacity: 1;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: #ff6b4a;
}

.mobile-toggle {
    display: none;
    background: linear-gradient(135deg, #ff6b4a 0%, #ff8c6b 100%);
    border: none;
    color: #ffffff;
    font-size: 1.42rem;
    width: 54px;
    height: 54px;
    cursor: pointer;
    transition: all 0.34s ease;
    box-shadow: 0 6px 20px rgba(255, 107, 74, 0.38);
    border-radius: 20px;
}

.mobile-toggle:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 10px 26px rgba(255, 107, 74, 0.48);
}

#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 148px 0 98px;
    position: relative;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute;
    top: -24%;
    right: -16%;
    width: 645px;
    height: 645px;
    background: radial-gradient(circle, rgba(255, 107, 74, 0.26) 0%, transparent 68%);
    border-radius: 50%;
    animation: reefFloat 36s ease-in-out infinite;
    filter: blur(72px);
}

#hero::after {
    content: '';
    position: absolute;
    bottom: -28%;
    left: -12%;
    width: 595px;
    height: 595px;
    background: radial-gradient(circle, rgba(26, 188, 156, 0.23) 0%, transparent 68%);
    border-radius: 50%;
    animation: reefFloat 42s ease-in-out infinite reverse;
    filter: blur(72px);
}

@keyframes reefFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.58;
    }
    38% {
        transform: translate(38px, -45px) scale(1.09);
        opacity: 0.82;
    }
    72% {
        transform: translate(-32px, 38px) scale(0.94);
        opacity: 0.68;
    }
}

.hero-content {
    max-width: 1460px;
    margin: 0 auto;
    padding: 0 3.6rem;
    display: grid;
    grid-template-columns: 1.28fr 1fr;
    gap: 7.2rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    animation: fadeInCoral 1.15s cubic-bezier(0.34, 0.56, 0.64, 1);
}

@keyframes fadeInCoral {
    0% {
        opacity: 0;
        transform: translateY(42px) scale(0.96);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.hero-text h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 4.85rem;
    font-weight: 800;
    line-height: 1.06;
    margin-bottom: 2.68rem;
    color: #1a3a52;
    letter-spacing: -1.15px;
    text-shadow: 0 4px 16px rgba(26, 58, 82, 0.14);
}

.hero-text h1 br {
    display: block;
}

.hero-subtitle {
    font-size: 1.48rem;
    color: #2c5f7f;
    margin-bottom: 3.85rem;
    line-height: 1.68;
    font-weight: 400;
    letter-spacing: 0.32px;
}

.hero-buttons {
    display: flex;
    gap: 2.38rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1.48rem 3.72rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.42s cubic-bezier(0.34, 0.56, 0.64, 1);
    font-size: 1.05rem;
    letter-spacing: 0.68px;
    position: relative;
    overflow: hidden;
    border-radius: 32px;
    font-family: 'Montserrat', sans-serif;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.35);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    transition: width 0.75s ease, height 0.75s ease;
}

.btn:hover::before {
    width: 420px;
    height: 420px;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b4a 0%, #ff8c6b 100%);
    color: #ffffff;
    box-shadow: 0 12px 36px rgba(255, 107, 74, 0.42);
    border: 2.5px solid rgba(255, 140, 107, 0.26);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 18px 48px rgba(255, 107, 74, 0.52);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.96);
    color: #ff6b4a;
    border: 2.5px solid #ff8c6b;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #1abc9c 0%, #16a085 100%);
    color: #ffffff;
    border-color: #1abc9c;
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 16px 42px rgba(26, 188, 156, 0.45);
}

.hero-image {
    animation: fadeInCoral 1.15s cubic-bezier(0.34, 0.56, 0.64, 1) 0.22s both;
}

.profile-card {
    background: rgba(255, 255, 255, 0.91);
    backdrop-filter: blur(24px);
    padding: 3.25rem;
    box-shadow: 
        0 18px 65px rgba(255, 107, 74, 0.26),
        inset 0 1px 0 rgba(255, 255, 255, 0.82);
    transition: all 0.52s cubic-bezier(0.34, 0.56, 0.64, 1);
    position: relative;
    border: 2.8px solid rgba(255, 140, 107, 0.32);
    border-radius: 35px;
}

.profile-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5.5px;
    background: linear-gradient(90deg, #ff6b4a 0%, #1abc9c 50%, #3498db 100%);
    border-radius: 35px 35px 0 0;
}

.profile-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 
        0 35px 92px rgba(255, 107, 74, 0.38),
        inset 0 1px 0 rgba(255, 255, 255, 0.92);
}

.profile-card img {
    width: 100%;
    margin-bottom: 2.52rem;
    box-shadow: 0 15px 52px rgba(26, 58, 82, 0.22);
    border: 3.2px solid rgba(255, 140, 107, 0.32);
    border-radius: 28px;
}

.profile-details h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.42rem;
    margin-bottom: 0.75rem;
    color: #1a3a52;
    font-weight: 800;
    letter-spacing: -0.35px;
}

.profile-details p {
    color: #2c5f7f;
    margin-bottom: 2.52rem;
    line-height: 1.68;
    font-weight: 400;
}

.social-links a {
    display: inline-block;
    padding: 1.32rem 3.28rem;
    background: linear-gradient(135deg, #ff6b4a 0%, #ff8c6b 100%);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.68px;
    transition: all 0.42s cubic-bezier(0.34, 0.56, 0.64, 1);
    box-shadow: 0 12px 36px rgba(255, 107, 74, 0.42);
    border-radius: 24px;
    font-family: 'Montserrat', sans-serif;
}

.social-links a:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 18px 48px rgba(255, 107, 74, 0.52);
}

section {
    padding: 118px 0;
    position: relative;
    z-index: 1;
}

.container {
    max-width: 1460px;
    margin: 0 auto;
    padding: 0 3.6rem;
}

.section-header {
    text-align: center;
    margin-bottom: 6.05rem;
    position: relative;
}

.section-header::before {
    content: '🐠';
    position: absolute;
    top: -72px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.55rem;
    opacity: 0.55;
    animation: fishSwim 8.5s ease-in-out infinite;
}

@keyframes fishSwim {
    0%, 100% { transform: translateX(-50%) translateY(0) rotate(0deg); opacity: 0.55; }
    50% { transform: translateX(-35%) translateY(-14px) rotate(8deg); opacity: 0.82; }
}

.section-header h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 4.72rem;
    font-weight: 800;
    line-height: 1.1;
    color: #1a3a52;
    letter-spacing: -1.25px;
    position: relative;
    display: inline-block;
    text-shadow: 0 4px 16px rgba(26, 58, 82, 0.14);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    width: 115px;
    height: 4.5px;
    background: linear-gradient(90deg, transparent 0%, #ff6b4a 22%, #1abc9c 50%, #3498db 78%, transparent 100%);
    border-radius: 4px;
}

#experience {
    background: rgba(255, 255, 255, 0.68);
    backdrop-filter: blur(42px);
}

.timeline {
    position: relative;
    max-width: 1310px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 155px;
    top: 0;
    bottom: 0;
    width: 4.2px;
    background: linear-gradient(180deg, #ff6b4a 0%, #1abc9c 50%, #3498db 100%);
    border-radius: 4px;
    opacity: 0.58;
}

.timeline-item {
    display: grid;
    grid-template-columns: 305px 1fr;
    gap: 5.45rem;
    margin-bottom: 5.65rem;
    position: relative;
}

.timeline-year {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.82rem;
    font-weight: 800;
    color: #ff6b4a;
    position: relative;
    z-index: 2;
    text-align: right;
    padding-right: 3.35rem;
    letter-spacing: -0.55px;
    text-shadow: 0 4px 18px rgba(255, 107, 74, 0.24);
}

.timeline-year::after {
    content: '';
    position: absolute;
    right: -68px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: #1abc9c;
    border: 4.8px solid rgba(255, 255, 255, 0.97);
    box-shadow: 
        0 0 0 9.5px rgba(26, 188, 156, 0.22),
        0 6px 22px rgba(26, 188, 156, 0.48);
    border-radius: 50%;
}

.timeline-content {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(22px);
    padding: 3.55rem;
    border-left: 5.5px solid #ff6b4a;
    transition: all 0.44s cubic-bezier(0.34, 0.56, 0.64, 1);
    box-shadow: 0 14px 48px rgba(255, 107, 74, 0.2);
    border-radius: 26px;
    border: 2.8px solid rgba(255, 140, 107, 0.28);
    border-left: 5.5px solid #ff6b4a;
}

.timeline-content:hover {
    transform: translateX(18px);
    box-shadow: 0 24px 68px rgba(255, 107, 74, 0.32);
    border-left-width: 8.5px;
}

.timeline-content h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.42rem;
    margin-bottom: 0.75rem;
    color: #1a3a52;
    font-weight: 800;
    letter-spacing: -0.35px;
}

.timeline-content h4 {
    color: #ff6b4a;
    font-size: 1.32rem;
    margin-bottom: 1.78rem;
    font-weight: 700;
    letter-spacing: 0.32px;
}

.timeline-content p {
    color: #2c5f7f;
    line-height: 1.76;
    margin: 0;
}

.timeline-content a {
    color: #ff6b4a;
    text-decoration: none;
    font-weight: 700;
    border-bottom: 2.8px solid transparent;
    transition: all 0.34s ease;
}

.timeline-content a:hover {
    border-bottom-color: #ff6b4a;
}

#ai {
    background: linear-gradient(180deg, rgba(255, 232, 214, 0.55) 0%, rgba(255, 217, 192, 0.55) 100%);
    backdrop-filter: blur(42px);
}

.ai-projects {
    display: grid;
    gap: 4.85rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(22px);
    padding: 4.35rem;
    transition: all 0.44s cubic-bezier(0.34, 0.56, 0.64, 1);
    position: relative;
    box-shadow: 0 16px 58px rgba(255, 107, 74, 0.22);
    border: 2.8px solid rgba(255, 140, 107, 0.32);
    border-radius: 32px;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5.5px;
    background: linear-gradient(90deg, #ff6b4a 0%, #1abc9c 50%, #3498db 100%);
    border-radius: 32px 32px 0 0;
}

.project-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 32px 88px rgba(255, 107, 74, 0.35);
}

.project-header {
    display: flex;
    align-items: center;
    gap: 2.38rem;
    margin-bottom: 1.52rem;
}

.project-header h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.95rem;
    color: #1a3a52;
    margin: 0;
    font-weight: 800;
    letter-spacing: -0.48px;
}

.project-client {
    color: #ff6b4a;
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: 2.45rem;
    letter-spacing: 0.32px;
}

.project-card > p {
    color: #2c5f7f;
    line-height: 1.76;
    margin-bottom: 2.85rem;
}

.project-impact {
    background: linear-gradient(135deg, rgba(255, 107, 74, 0.15) 0%, rgba(26, 188, 156, 0.12) 100%);
    padding: 2.45rem;
    border-left: 5.5px solid #1abc9c;
    color: #1a3a52;
    line-height: 1.76;
    border-radius: 20px;
}

.project-impact strong {
    color: #ff6b4a;
    font-weight: 700;
}

#speaking {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(42px);
}

.speaking-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4.85rem;
}

.year-section {
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(22px);
    padding: 3.85rem;
    transition: all 0.44s cubic-bezier(0.34, 0.56, 0.64, 1);
    box-shadow: 0 16px 52px rgba(255, 107, 74, 0.21);
    border: 2.8px solid rgba(255, 140, 107, 0.32);
    border-radius: 32px;
}

.year-section:hover {
    transform: translateY(-15px);
    box-shadow: 0 28px 75px rgba(255, 107, 74, 0.32);
}

.year-section h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.25rem;
    margin-bottom: 2.85rem;
    color: #ff6b4a;
    text-align: center;
    padding-bottom: 2.05rem;
    border-bottom: 3.5px solid rgba(255, 140, 107, 0.32);
    font-weight: 800;
    letter-spacing: -0.48px;
}

.year-section.books {
    grid-column: span 2;
    background: linear-gradient(135deg, #ff6b4a 0%, #ff8c6b 100%);
    border: none;
    box-shadow: 0 24px 72px rgba(255, 107, 74, 0.48);
}

.year-section.books h3 {
    color: #ffffff;
    border-bottom-color: rgba(255, 255, 255, 0.32);
}

.achievements {
    list-style: none;
}

.achievements li {
    padding: 1.45rem 0;
    color: #2c5f7f;
    border-bottom: 2.8px solid rgba(255, 140, 107, 0.2);
    line-height: 1.76;
    position: relative;
    padding-left: 2.95rem;
}

.achievements li::before {
    content: '◉';
    position: absolute;
    left: 0;
    color: #1abc9c;
    font-size: 2.05rem;
}

.year-section.books .achievements li {
    color: rgba(255, 255, 255, 0.97);
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

.year-section.books .achievements li::before {
    color: #ffffff;
}

.achievements li:last-child {
    border-bottom: none;
}

.achievements strong {
    color: #1a3a52;
    font-weight: 700;
}

.year-section.books .achievements strong {
    color: #ffffff;
}

#personal {
    background: linear-gradient(180deg, rgba(255, 217, 192, 0.55) 0%, rgba(255, 232, 214, 0.72) 100%);
    backdrop-filter: blur(42px);
}

#contact {
    background: rgba(255, 255, 255, 0.74);
    backdrop-filter: blur(42px);
}

.contact-card {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(28px);
    padding: 7.25rem 6.35rem;
    text-align: center;
    box-shadow: 0 28px 88px rgba(255, 107, 74, 0.3);
    max-width: 1200px;
    margin: 0 auto;
    border: 2.8px solid rgba(255, 140, 107, 0.38);
    position: relative;
    border-radius: 42px;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5.5px;
    background: linear-gradient(90deg, transparent 0%, #ff6b4a 18%, #1abc9c 50%, #3498db 82%, transparent 100%);
    border-radius: 42px 42px 0 0;
}

.contact-card h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 5.45rem;
    margin-bottom: 2.85rem;
    color: #1a3a52;
    font-weight: 800;
    letter-spacing: -1.35px;
    text-shadow: 0 4px 16px rgba(26, 58, 82, 0.14);
}

.contact-card > p {
    font-size: 1.48rem;
    color: #2c5f7f;
    line-height: 1.76;
    margin-bottom: 4.85rem;
    max-width: 985px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3.25rem;
    flex-wrap: wrap;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1.78rem;
    padding: 1.95rem 4.85rem;
    background: linear-gradient(135deg, #ff6b4a 0%, #ff8c6b 100%);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 0.68px;
    transition: all 0.42s cubic-bezier(0.34, 0.56, 0.64, 1);
    box-shadow: 0 16px 48px rgba(255, 107, 74, 0.42);
    position: relative;
    overflow: hidden;
    border-radius: 32px;
    font-family: 'Montserrat', sans-serif;
}

.contact-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.35);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    transition: width 0.75s ease, height 0.75s ease;
}

.contact-link:hover::before {
    width: 420px;
    height: 420px;
}

.contact-link:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 24px 62px rgba(255, 107, 74, 0.58);
}

.contact-link .icon {
    font-size: 1.95rem;
}

#footer {
    background: linear-gradient(135deg, #1a3a52 0%, #2c5f7f 100%);
    backdrop-filter: blur(22px);
    padding: 4.85rem 0;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    border-top: 3.5px solid rgba(255, 140, 107, 0.32);
}

#footer a {
    color: #ff8c6b;
    text-decoration: none;
    transition: color 0.34s ease;
    font-weight: 700;
}

#footer a:hover {
    color: #ffffff;
}

@media screen and (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 5.75rem;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        max-width: 615px;
        margin: 0 auto;
    }

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

    .year-section.books {
        grid-column: span 1;
    }
}

@media screen and (max-width: 900px) {
    .nav-container {
        padding: 0 2.85rem;
        height: 76px;
    }

    html {
        scroll-padding-top: 76px;
    }

    .nav-menu {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(28px);
        flex-direction: column;
        padding: 4.25rem;
        gap: 0;
        box-shadow: 0 28px 78px rgba(255, 107, 74, 0.32);
        transform: translateY(-150%);
        transition: transform 0.44s cubic-bezier(0.34, 0.56, 0.64, 1);
        border-bottom: 3.5px solid rgba(255, 140, 107, 0.32);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu li a {
        width: 100%;
        text-align: center;
        padding: 1.55rem;
        border-bottom: 2.8px solid rgba(255, 140, 107, 0.15);
    }

    .mobile-toggle {
        display: block;
    }

    .hero-text h1 {
        font-size: 3.75rem;
    }

    .section-header h2 {
        font-size: 3.55rem;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 2.85rem;
        margin-bottom: 5.45rem;
        padding-left: 6.35rem;
    }

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

    .timeline-year::after {
        left: -68px;
        right: auto;
    }

    .contact-card {
        padding: 6.35rem 4.85rem;
    }
}

@media screen and (max-width: 600px) {
    .container {
        padding: 0 2.35rem;
    }

    .nav-container {
        padding: 0 2.35rem;
        height: 72px;
    }

    html {
        scroll-padding-top: 72px;
    }

    #hero {
        padding: 138px 0 92px;
    }

    .hero-text h1 {
        font-size: 2.85rem;
    }

    .hero-subtitle {
        font-size: 1.22rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    section {
        padding: 98px 0;
    }

    .section-header {
        margin-bottom: 4.85rem;
    }

    .section-header h2 {
        font-size: 2.75rem;
    }

    .profile-card {
        padding: 2.85rem;
    }

    .timeline-item {
        padding-left: 4.85rem;
    }

    .timeline-content {
        padding: 2.95rem;
    }

    .project-card {
        padding: 3.65rem 2.85rem;
    }

    .contact-card {
        padding: 5.45rem 2.85rem;
    }

    .contact-card h2 {
        font-size: 3.75rem;
    }

    .contact-info {
        flex-direction: column;
    }

    .contact-link {
        justify-content: center;
        padding: 1.52rem 2.95rem;
        font-size: 1rem;
    }
}