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

:root {
    --primary: #00A884;
    --primary-dark: #008F72;
    --primary-light: #E7FCF5;
    --primary-lighter: #F0FFF9;
    --dark: #111B21;
    --dark-secondary: #1B2B33;
    --gray-900: #1F2C33;
    --gray-700: #3B4A54;
    --gray-500: #667781;
    --gray-300: #8696A0;
    --gray-200: #CCD4D9;
    --gray-100: #E9EDEF;
    --gray-50: #F0F2F5;
    --white: #FFFFFF;
    --bubble-out: #D9FDD3;
    --bubble-in: #FFFFFF;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 14px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
}

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

ul { list-style: none; }

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font);
    font-weight: 600;
    border: none;
    cursor: pointer;
    border-radius: 50px;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn--primary {
    background: var(--primary);
    color: var(--white);
    padding: 14px 32px;
    font-size: 16px;
}
.btn--primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 168, 132, 0.35);
}

.btn--outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.7);
    padding: 10px 24px;
    font-size: 14px;
    transition: var(--transition);
}
.btn--outline:hover {
    background: var(--white);
    color: var(--dark);
    border-color: var(--white);
}

.header--scrolled .btn--outline {
    color: var(--primary);
    border-color: var(--primary);
}
.header--scrolled .btn--outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn--white {
    background: var(--white);
    color: var(--primary);
    padding: 14px 32px;
    font-size: 16px;
}
.btn--white:hover {
    background: var(--gray-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--sm { padding: 8px 20px; font-size: 14px; }
.btn--lg { padding: 16px 40px; font-size: 17px; }

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.header--scrolled {
    background: var(--white);
    border-bottom-color: var(--gray-100);
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
}

.nav__logo-icon {
    width: 36px;
    height: 36px;
}

.nav__logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.5px;
    transition: color 0.3s;
}

.header--scrolled .nav__logo-text {
    color: var(--dark);
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav__link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    border-radius: 8px;
    transition: color 0.3s, background 0.3s;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font);
}

.nav__link:hover {
    color: var(--white);
    background: rgba(255,255,255,0.15);
}

.header--scrolled .nav__link {
    color: var(--gray-700);
}

.header--scrolled .nav__link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav__chevron {
    transition: transform 0.2s;
}

.nav__item--dropdown {
    position: relative;
}

.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--transition);
}

.nav__item--dropdown:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav__item--dropdown:hover .nav__chevron {
    transform: rotate(180deg);
}

.nav__dropdown-link {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--gray-700);
    border-radius: 8px;
    transition: var(--transition);
}

.nav__dropdown-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.header--scrolled .nav__toggle span {
    background: var(--dark);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 72px;
}

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

.hero__bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to right,
        rgba(0, 0, 0, 0.55) 0%,
        rgba(0, 0, 0, 0.35) 40%,
        rgba(0, 0, 0, 0.15) 70%,
        rgba(0, 0, 0, 0.05) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    padding: 100px 24px;
    min-height: calc(100vh - 72px);
}

.hero__text {
    max-width: 520px;
}

.hero__title {
    font-size: clamp(44px, 5.5vw, 76px);
    font-weight: 700;
    color: var(--white);
    line-height: 1.05;
    letter-spacing: -2.5px;
    margin-bottom: 24px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.hero__subtitle {
    font-size: clamp(16px, 1.8vw, 19px);
    color: rgba(255,255,255,0.9);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 420px;
    text-shadow: 0 1px 8px rgba(0,0,0,0.15);
}

/* Floating UI Elements */
.hero__floating {
    position: relative;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Group Card */
.hero-card {
    position: absolute;
    top: 20px;
    right: 0;
    background: var(--white);
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    z-index: 3;
    animation: floatUp 3s ease-in-out infinite alternate;
    min-width: 280px;
}

.hero-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-card__group-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--dark);
    margin-right: auto;
}

.hero-card__avatars {
    display: flex;
    align-items: center;
}

.hero-card__avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid var(--white);
    margin-left: -8px;
}

.hero-card__avatar:first-child { margin-left: 0; }
.hero-card__avatar--1 { background: linear-gradient(135deg, #FF6B6B, #EE5A24); z-index: 4; }
.hero-card__avatar--2 { background: linear-gradient(135deg, #A29BFE, #6C5CE7); z-index: 3; }
.hero-card__avatar--3 { background: linear-gradient(135deg, #55E6C1, #00A884); z-index: 2; }
.hero-card__avatar--4 { background: linear-gradient(135deg, #FECA57, #FF9F43); z-index: 1; }

.hero-card__more {
    font-size: 12px;
    color: var(--gray-300);
    margin-left: 6px;
}

.hero-card__join-btn {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    background: var(--primary);
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.hero-card__join-btn:hover {
    background: var(--primary-dark);
}

/* Floating Bubbles */
.hero-bubble {
    position: absolute;
    padding: 10px 16px;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(0,0,0,0.14);
    max-width: 220px;
    z-index: 2;
}

.hero-bubble--sent {
    background: var(--bubble-out);
    border-bottom-right-radius: 4px;
}

.hero-bubble--received {
    background: var(--white);
    border-bottom-left-radius: 4px;
}

.hero-bubble--1 {
    top: 120px;
    right: -10px;
    animation: floatUp 3.5s ease-in-out 0.5s infinite alternate;
}

.hero-bubble--2 {
    bottom: 100px;
    left: 30px;
    animation: floatUp 4s ease-in-out 1s infinite alternate;
}

.hero-bubble__sender {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 2px;
}

.hero-bubble__text {
    display: block;
    font-size: 14px;
    color: var(--dark);
    line-height: 1.4;
}

.hero-bubble__time {
    display: block;
    font-size: 10px;
    color: var(--gray-300);
    text-align: right;
    margin-top: 4px;
}

/* Floating Reactions */
.hero-reactions {
    position: absolute;
    bottom: 70px;
    left: 80px;
    display: flex;
    gap: 4px;
    background: var(--white);
    padding: 6px 12px;
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    font-size: 20px;
    z-index: 3;
    animation: floatUp 3.2s ease-in-out 0.8s infinite alternate;
}

@keyframes floatUp {
    0% { transform: translateY(0); }
    100% { transform: translateY(-12px); }
}

/* ===== FEATURE SECTIONS ===== */
.feature {
    padding: 120px 0;
}

.feature--tinted {
    background: var(--gray-50);
}

.feature__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 80px;
}

.feature--reverse .feature__inner {
    direction: rtl;
}

.feature--reverse .feature__inner > * {
    direction: ltr;
}

.feature__content {
    max-width: 500px;
}

.feature__title {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.feature__text {
    font-size: 17px;
    line-height: 1.8;
    color: var(--gray-500);
    margin-bottom: 28px;
}

.feature__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.feature__link:hover {
    gap: 10px;
    color: var(--primary-dark);
}

/* Feature Illustrations */
.feature__illustration {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* -- Messaging Illustration -- */
.illustration-card {
    width: 380px;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.illustration-card__row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.illustration-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
}

.illustration-card__avatar--green { background: linear-gradient(135deg, #00A884, #00D4A4); }
.illustration-card__avatar--blue { background: linear-gradient(135deg, #0098DA, #00C4F0); }
.illustration-card__avatar--purple { background: linear-gradient(135deg, #8E44AD, #C39BD3); }

.illustration-card__lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.illustration-card__line {
    height: 10px;
    border-radius: 5px;
    background: var(--gray-100);
}

.illustration-card__line--long { width: 100%; }
.illustration-card__line--medium { width: 70%; }
.illustration-card__line--short { width: 45%; }

.illustration-card__media {
    display: flex;
    gap: 12px;
    margin-top: 4px;
}

.illustration-card__img-placeholder {
    width: 100%;
    height: 100px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* -- Calls Illustration -- */
.illustration-calls {
    width: 380px;
    background: var(--dark);
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-xl);
}

.illustration-calls__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 28px;
}

.illustration-calls__participant {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.illustration-calls__face {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-md);
}

.illustration-calls__face--1 { background: linear-gradient(135deg, #2C5F4C, #4CA88B); }
.illustration-calls__face--2 { background: linear-gradient(135deg, #5B3E7C, #9B6DC6); }
.illustration-calls__face--3 { background: linear-gradient(135deg, #3E5B7C, #6D9BC6); }
.illustration-calls__face--4 { background: linear-gradient(135deg, #7C5B3E, #C69B6D); }

.illustration-calls__name {
    font-size: 12px;
    color: rgba(255,255,255,0.8);
    font-weight: 500;
}

.illustration-calls__participant--self .illustration-calls__face {
    border: 2px solid var(--primary);
}

.illustration-calls__controls {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.illustration-calls__btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.illustration-calls__btn--mute { background: rgba(255,255,255,0.15); }
.illustration-calls__btn--video { background: rgba(255,255,255,0.15); }
.illustration-calls__btn--end { background: #EF4444; }

/* -- Communities Illustration -- */
.illustration-community {
    width: 380px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.illustration-community__header {
    background: var(--primary);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.illustration-community__icon {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.illustration-community__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
}

.illustration-community__groups {
    padding: 8px;
}

.illustration-community__group {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.illustration-community__group:hover {
    background: var(--gray-50);
}

.illustration-community__group-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    flex-shrink: 0;
}

.illustration-community__group-icon--1 { background: linear-gradient(135deg, #F59E0B, #F97316); }
.illustration-community__group-icon--2 { background: linear-gradient(135deg, #8B5CF6, #A78BFA); }
.illustration-community__group-icon--3 { background: linear-gradient(135deg, #06B6D4, #22D3EE); }

.illustration-community__group-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.illustration-community__group-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

.illustration-community__group-msg {
    font-size: 13px;
    color: var(--gray-300);
}

/* -- Channels Illustration -- */
.illustration-channels {
    width: 380px;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 8px;
    box-shadow: var(--shadow-lg);
}

.illustration-channels__item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.illustration-channels__item:hover {
    background: var(--gray-50);
}

.illustration-channels__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.illustration-channels__avatar--1 { background: linear-gradient(135deg, #1E3A5F, #3B82F6); }
.illustration-channels__avatar--2 { background: linear-gradient(135deg, #14532D, #22C55E); }
.illustration-channels__avatar--3 { background: linear-gradient(135deg, #78350F, #D97706); }

.illustration-channels__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.illustration-channels__name {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 4px;
}

.illustration-channels__verified {
    flex-shrink: 0;
}

.illustration-channels__preview {
    font-size: 13px;
    color: var(--gray-300);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.illustration-channels__badge {
    background: var(--primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 600;
    min-width: 22px;
    height: 22px;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
    flex-shrink: 0;
}

/* ===== PRIVACY SECTION ===== */
.privacy {
    padding: 120px 0;
    background: var(--white);
}

.privacy__inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.privacy__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    margin-bottom: 28px;
}

.privacy__title {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.privacy__text {
    font-size: 17px;
    line-height: 1.8;
    color: var(--gray-500);
    margin-bottom: 48px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

.privacy__features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    text-align: left;
    margin-bottom: 40px;
}

.privacy__feature {
    display: flex;
    gap: 14px;
    padding: 24px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.privacy__feature:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
}

.privacy__feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.privacy__feature-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}

.privacy__feature-text {
    font-size: 13px;
    line-height: 1.5;
    color: var(--gray-500);
}

/* ===== DOWNLOAD SECTION ===== */
.download {
    padding: 120px 0;
    background: var(--gray-50);
}

.download__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 80px;
}

.download__title {
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 20px;
}

.download__text {
    font-size: 17px;
    line-height: 1.8;
    color: var(--gray-500);
    margin-bottom: 40px;
}

.download__platforms {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.download__platform {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 22px;
    background: var(--dark);
    color: var(--white);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.download__platform:hover {
    background: var(--gray-900);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.download__platform-icon {
    display: flex;
    align-items: center;
    color: var(--white);
}

.download__platform-info {
    display: flex;
    flex-direction: column;
}

.download__platform-label {
    font-size: 10px;
    opacity: 0.7;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.download__platform-name {
    font-size: 16px;
    font-weight: 600;
}

/* Download Devices Illustration */
.download__devices {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    height: 400px;
}

.download__device--desktop {
    width: 340px;
    background: var(--dark);
    border-radius: 12px;
    padding: 8px;
    box-shadow: var(--shadow-xl);
}

.download__device-screen {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    height: 220px;
}

.download__device-sidebar {
    width: 35%;
    background: var(--white);
    border-right: 1px solid var(--gray-100);
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.download__device-chat-item {
    height: 36px;
    border-radius: 8px;
    background: var(--gray-50);
}

.download__device-chat-item--active {
    background: var(--primary-light);
}

.download__device-main {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--gray-50);
}

.download__device-msg {
    height: 28px;
    border-radius: 10px;
    max-width: 70%;
}

.download__device-msg--in {
    background: var(--white);
    align-self: flex-start;
    width: 65%;
}

.download__device-msg--out {
    background: var(--bubble-out);
    align-self: flex-end;
    width: 55%;
}

.download__device-msg--short {
    width: 40%;
}

.download__device--phone {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 140px;
    background: var(--dark);
    border-radius: 20px;
    padding: 6px;
    box-shadow: var(--shadow-xl);
    z-index: 2;
}

.download__device-screen--phone {
    border-radius: 16px;
    height: 240px;
    flex-direction: column;
    padding: 16px 10px;
    background: var(--gray-50);
}

.download__device-screen--phone .download__device-msg {
    height: 22px;
}

/* ===== BUSINESS CTA ===== */
.business {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #00D4A4 100%);
    text-align: center;
}

.business__inner {
    max-width: 640px;
    margin: 0 auto;
}

.business__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    margin-bottom: 24px;
}

.business__title {
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 16px;
}

.business__text {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(255,255,255,0.9);
    margin-bottom: 36px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    padding: 64px 0 32px;
    color: rgba(255,255,255,0.7);
}

.footer__top {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.footer__logo-icon {
    width: 36px;
    height: 36px;
}

.footer__columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.footer__heading {
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer__links li {
    margin-bottom: 10px;
}

.footer__links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

.footer__links a:hover {
    color: var(--primary);
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
}

.footer__social {
    display: flex;
    gap: 16px;
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
    transition: var(--transition);
}

.footer__social-link:hover {
    background: var(--primary);
    color: var(--white);
}

.footer__legal {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 13px;
}

.footer__legal a {
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}

.footer__legal a:hover {
    color: var(--primary);
}

/* ===== ANIMATIONS ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 80px 24px;
    }
    .hero__text { max-width: 100%; }
    .hero__subtitle { margin-left: auto; margin-right: auto; }
    .hero__cta { display: flex; justify-content: center; }
    .hero__floating { height: 320px; }
    .hero-card { right: 50%; transform: translateX(50%); top: 0; }
    .hero-bubble--1 { right: 10%; top: 100px; }
    .hero-bubble--2 { left: 10%; bottom: 40px; }
    .hero-reactions { left: 50%; transform: translateX(-50%); bottom: 10px; }

    .feature__inner,
    .feature--reverse .feature__inner {
        grid-template-columns: 1fr;
        gap: 40px;
        direction: ltr;
    }

    .feature__content { max-width: 100%; text-align: center; }
    .feature__image { display: flex; justify-content: center; }

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

    .download__inner {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .download__platforms { justify-content: center; }
    .download__image { display: flex; justify-content: center; }

    .footer__top {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .footer__columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        inset: 0;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
    }

    .nav__menu.active {
        transform: translateX(0);
    }

    .nav__list {
        flex-direction: column;
        gap: 8px;
    }

    .nav__link {
        font-size: 20px;
        padding: 12px 24px;
    }

    .nav__toggle {
        display: flex;
    }

    .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);
    }

    .nav__dropdown {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        padding: 0 12px;
    }

    .nav__actions .btn--outline { display: none; }

    .hero__overlay {
        background: linear-gradient(
            to bottom,
            rgba(0, 0, 0, 0.5) 0%,
            rgba(0, 0, 0, 0.3) 50%,
            rgba(0, 0, 0, 0.15) 100%
        );
    }

    .hero__floating { height: 280px; }
    .hero-card { min-width: 240px; padding: 12px 16px; }
    .hero-bubble { max-width: 180px; padding: 8px 12px; }
    .hero-bubble__text { font-size: 13px; }

    .illustration-card,
    .illustration-calls,
    .illustration-community,
    .illustration-channels {
        width: 100%;
        max-width: 340px;
    }

    .feature { padding: 80px 0; }

    .download__platforms { flex-direction: column; align-items: center; }
    .download__platform { width: 100%; max-width: 280px; justify-content: center; }
    .download__devices { height: 300px; }
    .download__device--desktop { width: 260px; }
    .download__device-screen { height: 170px; }
    .download__device--phone { width: 110px; }
    .download__device-screen--phone { height: 190px; }

    .footer__columns { grid-template-columns: 1fr 1fr; }
    .footer__bottom { flex-direction: column; gap: 20px; }
}

@media (max-width: 480px) {
    .hero__title { letter-spacing: -1px; }
    .hero__floating { height: 240px; }
    .hero-card { min-width: 220px; font-size: 12px; }
    .hero-card__avatar { width: 24px; height: 24px; }
    .hero-bubble--1 { right: 5%; }
    .hero-bubble--2 { left: 5%; }
    .privacy__features { gap: 16px; }
    .privacy__feature { flex-direction: column; text-align: center; align-items: center; }
    .footer__columns { grid-template-columns: 1fr; }
}