:root {
    --primary-color: #00dfd8;
    --secondary-color: #007cf0;
    --text-color: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 20px;
    --bg-dark: #050510;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-color);
    overflow-x: hidden;
    line-height: 1.6;
    background-image:
        radial-gradient(white, rgba(255, 255, 255, .2) 2px, transparent 3px),
        radial-gradient(white, rgba(255, 255, 255, .15) 1px, transparent 2px),
        radial-gradient(white, rgba(255, 255, 255, .1) 2px, transparent 3px),
        radial-gradient(circle at 15% 50%, rgba(0, 223, 216, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(0, 124, 240, 0.08), transparent 25%);
    background-size: 550px 550px, 350px 350px, 250px 250px, 100% 100%, 100% 100%;
    background-position: 0 0, 40px 60px, 130px 270px, 0 0, 0 0;
}

/* Background Animated Shapes */
.bg-shape {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
    animation: drift 10s infinite alternate;
    pointer-events: none;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: -100px;
    left: -100px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary-color);
    bottom: -100px;
    right: -100px;
    animation-delay: -5s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: purple;
    top: 40%;
    left: 40%;
    opacity: 0.4;
    animation: drift 15s infinite alternate-reverse;
}

.shape-4 {
    width: 200px;
    height: 200px;
    background: var(--primary-color);
    top: 20%;
    right: 10%;
    opacity: 0.3;
    animation: drift 12s infinite alternate;
}

.shape-content-1 {
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, var(--secondary-color), transparent 70%);
    top: 140vh;
    left: -150px;
    opacity: 0.3;
    animation: drift 12s infinite alternate;
}

.shape-content-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, var(--primary-color), transparent 70%);
    top: 240vh;
    right: -100px;
    opacity: 0.3;
    animation: drift 14s infinite alternate-reverse;
}

@keyframes drift {
    from { transform: translate(0, 0); }
    to   { transform: translate(30px, 50px); }
}

/* Glassmorphism Classes */
.glass-header,
.glass-card,
.glass-btn {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-top: 1px solid rgba(255, 255, 255, 0.3);
    border-left: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

h1, h2, h3 {
    text-shadow: 0 0 25px rgba(255, 255, 255, 0.15);
}

/* ============================================
   HEADER
   ============================================ */
header {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 96%;
    max-width: 1400px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 3rem;
    z-index: 1000;
    background: rgba(5, 5, 16, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--secondary-color), transparent);
    opacity: 0.7;
    box-shadow: 0 0 10px var(--secondary-color);
    border-radius: 0 0 50px 50px;
}

.logo {
    font-size: 1.3rem;
    font-weight: 800;
    background: linear-gradient(135deg, white 0%, var(--primary-color) 50%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
    filter: drop-shadow(0 0 2px rgba(0, 223, 216, 0.3));
    white-space: nowrap;
    text-decoration: none;
    flex-shrink: 0;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;
}

nav a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s;
    position: relative;
    padding: 5px 0;
    white-space: nowrap;
}

nav a:not(.nav-btn):hover {
    color: white;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

nav a:not(.nav-btn)::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--primary-color);
}

nav a:not(.nav-btn):hover::before {
    width: 80%;
}

.nav-btn {
    padding: 0.6rem 1.4rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white !important;
    font-weight: 600;
    font-size: 0.88rem;
    overflow: hidden;
    position: relative;
    z-index: 1;
    white-space: nowrap;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    transition: width 0.4s ease;
    z-index: -1;
}

.nav-btn:hover {
    border-color: transparent;
    box-shadow: 0 0 20px rgba(0, 124, 240, 0.4);
}

.nav-btn:hover::before {
    width: 100%;
}

/* Hamburger Button */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    cursor: pointer;
    gap: 5px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 8px;
    transition: background 0.3s;
    flex-shrink: 0;
}

.hamburger:hover {
    background: rgba(255, 255, 255, 0.1);
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

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

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

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

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 998;
    background: transparent;
}

.mobile-nav-overlay.active {
    display: block;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 90px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    width: 90%;
    max-width: 400px;
    background: rgba(5, 5, 16, 0.97);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 1.2rem;
    z-index: 999;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    flex-direction: column;
    gap: 0.25rem;
    opacity: 0;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.active {
    display: flex;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.mobile-menu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), var(--secondary-color), transparent);
    opacity: 0.7;
    border-radius: 2px;
}

.mobile-menu a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 1rem;
    padding: 0.85rem 1.2rem;
    border-radius: 12px;
    transition: all 0.2s;
    display: block;
    border: 1px solid transparent;
}

.mobile-menu a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu .mobile-nav-btn {
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    color: white !important;
    text-align: center;
    border-radius: 12px;
    font-weight: 600;
    margin-top: 0.3rem;
    border: none;
}

.mobile-menu .mobile-nav-btn:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(0, 124, 240, 0.4);
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    border: none;
}

.mobile-menu-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.07);
    margin: 0.3rem 0;
}

/* ============================================
   BASE LAYOUT
   ============================================ */
section {
    padding: 100px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-title .gradient-text {
    text-shadow: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

.hero .container {
    max-width: 1600px;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
    line-height: 1.2;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #fff;
    margin: 10px auto 0;
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    padding: 4rem;
    border-radius: 35px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    width: 100%;
}

.hero .container {
    max-width: 1600px;
    padding: 0 20px;
}

.hero-text-col {
    flex: 1;
    min-width: 0;
}

.hero h1 {
    font-size: 3.2rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-text-col p {
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 500px;
    line-height: 1.6;
}

.cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.hero-image-col {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
    perspective: 1000px;
    min-width: 0;
}

/* Phone Mockup */
.phone-mockup {
    width: 300px;
    height: 610px;
    border: 10px solid #1a1a1a;
    border-radius: 50px;
    background: #000;
    position: relative;
    box-shadow:
        0 0 0 3px #333,
        0 0 0 5px #111,
        0 20px 50px rgba(0, 0, 0, 0.6),
        0 0 60px rgba(0, 223, 216, 0.2);
    overflow: visible;
    transform-style: preserve-3d;
    transform: perspective(1500px) rotateY(-15deg) rotateX(10deg) rotateZ(-5deg) translateX(-40px);
    transition: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 90px;
    left: -14px;
    width: 4px;
    height: 28px;
    background: #333;
    border-radius: 4px 0 0 4px;
}

.phone-mockup::after {
    content: '';
    position: absolute;
    top: 135px;
    left: -14px;
    width: 4px;
    height: 55px;
    background: #333;
    border-radius: 4px 0 0 4px;
    box-shadow: 0 65px 0 #333;
}

.phone-mockup:hover {
    transform: perspective(1500px) rotateY(0deg) rotateX(0deg) rotateZ(0deg) translateY(-20px) translateX(-40px) scale(1.05);
    box-shadow:
        0 40px 80px rgba(0, 0, 0, 0.6),
        0 0 0 2px rgba(255, 255, 255, 0.5),
        0 0 60px rgba(0, 223, 216, 0.6),
        0 0 100px rgba(0, 124, 240, 0.4);
    z-index: 100;
}

.phone-notch {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 26px;
    background: #000;
    border-radius: 20px;
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 2px rgba(255, 255, 255, 0.1);
}

.phone-notch::before {
    content: '';
    width: 44px;
    height: 5px;
    background: #111;
    border-radius: 10px;
    margin-right: 8px;
}

.phone-notch::after {
    content: '';
    width: 7px;
    height: 7px;
    background: #1a1b26;
    border-radius: 50%;
    box-shadow: inset 0 0 2px rgba(255, 255, 255, 0.2);
}

/* Small Chat inside phone */
.small-chat {
    height: 100%;
    border-radius: 0;
    background: linear-gradient(180deg, rgba(15, 15, 30, 0.95), rgba(5, 5, 15, 0.98));
    display: flex;
    flex-direction: column;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(0, 223, 216, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(0, 124, 240, 0.05) 0%, transparent 20%);
}

.small-chat .chat-header {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 42px;
    padding-bottom: 10px;
}

.small-chat .chat-body {
    flex: 1;
    min-height: 0;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.small-chat .chat-body::-webkit-scrollbar {
    display: none;
}

.small-chat .message {
    font-size: 0.78rem;
    padding: 0.7rem 0.9rem;
    margin-bottom: 0.7rem;
    line-height: 1.4;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    max-width: 85%;
    position: relative;
}

.message.ai {
    background: rgba(255, 255, 255, 0.1);
    align-self: flex-start;
    border-radius: 18px 18px 18px 4px;
    color: rgba(255, 255, 255, 0.95);
}

.message.user {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    align-self: flex-end;
    border-radius: 18px 18px 4px 18px;
    color: white;
    font-weight: 500;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 0 20px rgba(0, 124, 240, 0.4);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 223, 216, 0.6);
}

/* ============================================
   APP INFO SECTION
   ============================================ */
.full-width {
    padding: 3rem;
    border-radius: 20px;
    text-align: center;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.feature-item {
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 15px;
    transition: all 0.3s;
    border: 1px solid transparent;
    text-align: left;
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.feature-item h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* ============================================
   CHAT INTERFACE (KULLANIM SECTION)
   ============================================ */
.chat-interface {
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    background: rgba(10, 10, 20, 0.6);
}

.chat-header {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red    { background: #ff5f56; }
.yellow { background: #ffbd2e; }
.green  { background: #27c93f; }

.chat-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 250px;
}

.message {
    padding: 0.8rem 1.2rem;
    border-radius: 15px;
    max-width: 80%;
    font-size: 0.95rem;
}

.typing-indicator span {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: #ccc;
    border-radius: 50%;
    margin-right: 3px;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40%           { transform: scale(1); }
}

.chat-input-area {
    padding: 1rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.fake-input {
    flex: 1;
    padding: 0.6rem;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
    color: #ccc;
    font-size: 0.9rem;
}

.send-btn {
    color: var(--primary-color);
    font-size: 1.2rem;
    cursor: pointer;
}

.section-caption {
    text-align: center;
    margin-top: 1rem;
    opacity: 0.6;
    font-size: 0.9rem;
}

/* ============================================
   DEVELOPERS SECTION
   ============================================ */
.developers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.dev-card {
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: transform 0.3s;
    position: relative;
    overflow: hidden;
}

.dev-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.dev-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
}

.dev-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: -webkit-linear-gradient(var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dev-card h3 {
    margin-bottom: 0.5rem;
}

.dev-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* Download Section */
.download-section { min-height: 60vh; }

.download-card {
    text-align: center;
    padding: 4rem 2rem;
    border-radius: 30px;
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.glass-btn {
    text-decoration: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: scale(1.05);
    border-color: var(--primary-color);
}

.icon { font-size: 1.2rem; }

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   CONTENT SECTION
   ============================================ */
.content-section {
    padding: 100px 20px;
}

/* ============================================
   RESPONSIVE - LARGE TABLET (≤1100px)
   ============================================ */
@media (max-width: 1100px) {
    header {
        padding: 1rem 2rem;
    }

    nav ul {
        gap: 1.4rem;
    }

    nav a {
        font-size: 0.85rem;
    }

    .hero-content-wrapper {
        padding: 3rem 2.5rem;
        gap: 3rem;
    }

    .hero h1 {
        font-size: 2.6rem;
    }

    .phone-mockup {
        width: 260px;
        height: 530px;
    }
}

/* ============================================
   RESPONSIVE - TABLET (≤900px)
   ============================================ */
@media (max-width: 900px) {
    .hero-content-wrapper {
        flex-direction: column;
        text-align: center;
        padding: 3rem 2rem;
        gap: 3rem;
    }

    .hero h1 {
        font-size: 2.3rem;
    }

    .hero-text-col p {
        margin: 0 auto 2rem auto;
    }

    .cta-group {
        justify-content: center;
    }

    .phone-mockup {
        transform: perspective(1500px) rotateY(0deg) rotateX(5deg) rotateZ(0deg);
        width: 250px;
        height: 510px;
    }
}

/* ============================================
   RESPONSIVE - MOBILE (≤768px)
   ============================================ */
@media (max-width: 768px) {
    /* Header */
    header {
        padding: 0.9rem 1.4rem;
        top: 12px;
        width: 94%;
        border-radius: 20px;
    }

    .hamburger {
        display: flex;
    }

    header nav {
        display: none;
    }

    /* Hero */
    .hero {
        padding-top: 100px;
        padding-bottom: 40px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 1.95rem;
    }

    .hero-content-wrapper {
        flex-direction: column;
        padding: 2rem 1.5rem;
        gap: 2rem;
        text-align: center;
        border-radius: 22px;
    }

    .hero-text-col p {
        margin: 0 auto 2rem auto;
        font-size: 1rem;
    }

    .hero-image-col {
        display: none;
    }

    .cta-group {
        justify-content: center;
    }

    .cta-button {
        padding: 0.85rem 2rem;
        font-size: 0.98rem;
    }

    /* Sections */
    section {
        padding: 80px 15px;
    }

    .content-section {
        padding: 80px 15px;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    /* App info */
    .full-width {
        padding: 1.5rem 1.2rem;
    }

    .full-width > p {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-item {
        padding: 1.4rem;
    }

    /* Chat preview */
    .chat-interface {
        border-radius: 12px;
    }

    .chat-body {
        min-height: 200px;
        padding: 1rem;
    }

    /* Developers */
    .developers-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .dev-card {
        padding: 1.8rem 1.5rem;
    }

    /* Download */
    .download-card {
        padding: 2rem 1.2rem;
        border-radius: 20px;
    }

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

    .download-buttons {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        margin-top: 2rem;
    }
}

/* ============================================
   RESPONSIVE - SMALL MOBILE (≤480px)
   ============================================ */
@media (max-width: 480px) {
    header {
        padding: 0.8rem 1.1rem;
        top: 10px;
        width: 92%;
    }

    .logo {
        font-size: 1.05rem;
    }

    .hero h1 {
        font-size: 1.65rem;
    }

    .hero-text-col p {
        font-size: 0.93rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 0.8rem 1.8rem;
        font-size: 0.93rem;
        width: 100%;
        text-align: center;
    }

    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-content-wrapper {
        padding: 1.5rem 1.1rem;
        border-radius: 18px;
    }

    .dev-card {
        padding: 1.4rem 1.1rem;
    }

    .dev-card h2 {
        font-size: 1.15rem;
    }

    .full-width {
        padding: 1.1rem;
    }

    .mobile-menu {
        width: 94%;
        top: 76px;
    }
}

/* ============================================
   RESPONSIVE - XS MOBILE (≤360px)
   ============================================ */
@media (max-width: 360px) {
    .hero h1 {
        font-size: 1.45rem;
    }

    .section-title {
        font-size: 1.35rem;
    }

    header {
        padding: 0.7rem 0.9rem;
    }

    .logo {
        font-size: 0.95rem;
    }

    .hero-content-wrapper {
        padding: 1.2rem 0.9rem;
    }
}