/* ============================================
   ALPHADRONE — DESIGN SYSTEM & STYLES
   Premium drone services website
   ============================================ */

/* ----- CSS Custom Properties ----- */
:root {
    /* Colors */
    --color-bg: #FAFAFA;
    --color-bg-alt: #F0F0F5;
    --color-bg-dark: #0D1B2A;
    --color-bg-darker: #1A1A2E;
    --color-text: #1A1A2E;
    --color-text-light: #5A5A72;
    --color-text-muted: #8A8AA0;
    --color-accent: #E63946;
    --color-accent-hover: #D12B38;
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-border: #E0E0E8;
    --color-card-bg: #FFFFFF;
    --color-card-shadow: rgba(26, 26, 46, 0.06);
    --color-hero-overlay: rgba(13, 27, 42, 0.7);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Font sizes (fluid) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
    --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.9375rem);
    --text-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1.0625rem);
    --text-lg: clamp(1.0625rem, 0.975rem + 0.4vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.65vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.5vw, 2.75rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2vw, 3.5rem);
    --text-5xl: clamp(2.75rem, 2rem + 3vw, 4.5rem);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    --space-section: clamp(5rem, 4rem + 4vw, 8rem);

    /* Layout */
    --container-max: 1200px;
    --container-padding: clamp(1.25rem, 1rem + 1.5vw, 2.5rem);

    /* Borders & Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.04), 0 1px 2px rgba(26, 26, 46, 0.06);
    --shadow-md: 0 4px 12px rgba(26, 26, 46, 0.06), 0 2px 4px rgba(26, 26, 46, 0.04);
    --shadow-lg: 0 10px 30px rgba(26, 26, 46, 0.08), 0 4px 8px rgba(26, 26, 46, 0.04);
    --shadow-xl: 0 20px 50px rgba(26, 26, 46, 0.1), 0 8px 16px rgba(26, 26, 46, 0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

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

/* ----- Container ----- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ----- Section Headers ----- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
    max-width: 680px;
    margin-left: auto;
    margin-right: auto;
}

.section-label {
    display: inline-block;
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-label--light {
    color: rgba(255, 255, 255, 0.7);
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: 0.875em 2em;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(230, 57, 70, 0.25);
}

.btn--primary:hover {
    background-color: var(--color-accent-hover);
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
    transform: translateY(-2px);
}

.btn--outline {
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(4px);
}

.btn--outline:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.btn--outline-light {
    border: 2px solid rgba(255, 255, 255, 0.35);
    color: var(--color-white);
    background: transparent;
}

.btn--outline-light:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn--large {
    font-size: var(--text-base);
    padding: 1em 2.5em;
}

.btn--small {
    font-size: var(--text-sm);
    padding: 0.6em 1.5em;
    background-color: var(--color-white);
    color: var(--color-text);
}

.btn--small:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
}


/* ============================================
   HEADER
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all var(--transition-base);
    background: transparent;
}

.header--scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    padding: 0.75rem 0;
}

.header--scrolled .header__nav-link {
    color: var(--color-text);
}

.header--scrolled .header__nav-link:hover {
    color: var(--color-accent);
}

.header--scrolled .header__nav-link--cta {
    color: var(--color-white);
}

.header--scrolled .logo-alpha,
.header--scrolled .logo-drone {
    color: var(--color-text);
}

.header--scrolled .header__menu-toggle span {
    background-color: var(--color-text);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    z-index: 1001;
}

.logo-alpha {
    color: var(--color-white);
    transition: color var(--transition-base);
}

.logo-drone {
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.header__nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.header__nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-fast);
    position: relative;
}

.header__nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-base);
}

.header__nav-link:hover::after,
.header__nav-link.active::after {
    width: 100%;
}

.header__nav-link:hover {
    color: var(--color-white);
}

.header__nav-link--cta {
    background-color: var(--color-accent);
    color: var(--color-white) !important;
    padding: 0.6em 1.5em;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 14px rgba(230, 57, 70, 0.2);
}

.header__nav-link--cta::after {
    display: none;
}

.header__nav-link--cta:hover {
    background-color: var(--color-accent-hover);
    box-shadow: 0 6px 20px rgba(230, 57, 70, 0.35);
    transform: translateY(-1px);
}

/* Mobile menu toggle */
.header__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 1001;
}

.header__menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.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__bg-img,
.hero__bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 40%;
}

.hero__bg-video {
    opacity: 0.85; /* Soft transparency requested */
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(13, 27, 42, 0.55) 0%,
        rgba(26, 26, 46, 0.8) 100%
    );
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 820px;
    padding: var(--space-5xl) var(--container-padding);
}

.hero__eyebrow {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-lg);
    padding: 0.5em 1.5em;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

.hero__title {
    font-family: var(--font-heading);
    font-size: var(--text-5xl);
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.65;
    margin-bottom: var(--space-2xl);
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero__ctas {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Scroll indicator */
.hero__scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero__scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-radius: 14px;
    position: relative;
}

.hero__scroll-indicator span::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 4px;
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 1; }
    50% { transform: translateX(-50%) translateY(10px); opacity: 0.3; }
}

/* ============================================
   TRUST BAR
   ============================================ */
.trust {
    padding: var(--space-3xl) 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.trust__grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-xl);
}

.trust__item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
}

.trust__icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    color: var(--color-accent);
}

.trust__text strong {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 2px;
}

.trust__text span {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: var(--space-section) 0;
    background-color: var(--color-bg);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.service-card {
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-slow);
}

.service-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-bg-darker));
    border-radius: var(--radius-md);
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.service-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.service-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.65;
    margin-bottom: var(--space-md);
    flex-grow: 1;
}

.service-card__benefit {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    font-size: var(--text-xs);
    color: var(--color-accent);
    font-weight: 500;
    margin-bottom: var(--space-lg);
    padding: 0.4em 0;
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-md);
}

.service-card__benefit::before {
    content: '✓';
    font-weight: 700;
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.4em;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.service-card__link svg {
    transition: transform var(--transition-fast);
}

.service-card__link:hover {
    color: var(--color-accent);
}

.service-card__link:hover svg {
    transform: translateX(4px);
}

/* ============================================
   WHY ALPHADRONE
   ============================================ */
.why {
    padding: var(--space-section) 0;
    background-color: var(--color-bg-alt);
}

.why__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
}

.why__item {
    padding: var(--space-xl);
}

.why__number {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 800;
    color: var(--color-accent);
    opacity: 0.2;
    margin-bottom: var(--space-sm);
    line-height: 1;
}

.why__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
    line-height: 1.3;
}

.why__desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.65;
}

/* ============================================
   PORTFOLIO
   ============================================ */
.portfolio {
    padding: var(--space-section) 0;
    background-color: var(--color-bg);
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.portfolio__item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-card-bg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-slow);
}

.portfolio__item:hover {
    box-shadow: var(--shadow-xl);
    border-color: transparent;
    transform: translateY(-4px);
}

.portfolio__img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.portfolio__img-wrap img,
.portfolio__img-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio__item:hover .portfolio__img-wrap img,
.portfolio__item:hover .portfolio__img-wrap video {
    transform: scale(1.05);
}

.portfolio__img-overlay {
    position: absolute;
    inset: 0;
    background: rgba(13, 27, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio__item:hover .portfolio__img-overlay {
    opacity: 1;
}

.portfolio__info {
    padding: var(--space-xl);
}

.portfolio__tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.portfolio__title {
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.portfolio__excerpt {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   SECTORS
   ============================================ */
.sectors {
    padding: var(--space-section) 0;
    background-color: var(--color-bg-alt);
}

.sectors__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.sector-card {
    background: var(--color-card-bg);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    text-align: center;
    transition: all var(--transition-slow);
}

.sector-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.sector-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    background: var(--color-bg-alt);
    border-radius: var(--radius-lg);
    color: var(--color-bg-dark);
    transition: all var(--transition-base);
}

.sector-card:hover .sector-card__icon {
    background: var(--color-bg-dark);
    color: var(--color-white);
}

.sector-card__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.sector-card__desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   PROCESS
   ============================================ */
.process {
    padding: var(--space-section) 0;
    background-color: var(--color-bg);
}

.process__steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
    max-width: 960px;
    margin: 0 auto;
}

.process__step {
    flex: 1;
    text-align: center;
    padding: 0 var(--space-lg);
    position: relative;
}

.process__step-number {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
    font-family: var(--font-heading);
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-bg-dark), var(--color-accent));
    border-radius: 50%;
    position: relative;
    z-index: 1;
}

.process__connector {
    flex: 0 0 1px;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-border));
    margin-top: 28px;
    flex-shrink: 1;
}

.process__step-title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-xs);
}

.process__step-desc {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ============================================
   FAQ
   ============================================ */
.faq {
    padding: var(--space-section) 0;
    background-color: var(--color-bg-alt);
}

.faq__list {
    max-width: 780px;
    margin: 0 auto;
}

.faq__item {
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.faq__item:first-child {
    border-top: 1px solid var(--color-border);
}

.faq__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
    padding: var(--space-xl) 0;
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: color var(--transition-fast);
    list-style: none;
}

.faq__question::-webkit-details-marker {
    display: none;
}

.faq__question::marker {
    content: '';
}

.faq__question:hover {
    color: var(--color-accent);
}

.faq__icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    position: relative;
    border-radius: 50%;
    background: var(--color-bg);
    transition: all var(--transition-base);
}

.faq__icon::before,
.faq__icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 2px;
    background-color: var(--color-text);
    transform: translate(-50%, -50%);
    transition: all var(--transition-base);
}

.faq__icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq__item[open] .faq__icon {
    background: var(--color-accent);
}

.faq__item[open] .faq__icon::before,
.faq__item[open] .faq__icon::after {
    background-color: var(--color-white);
}

.faq__item[open] .faq__icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq__answer {
    padding-bottom: var(--space-xl);
}

.faq__answer p {
    font-size: var(--text-sm);
    color: var(--color-text-light);
    line-height: 1.7;
    max-width: 640px;
}

/* ============================================
   CTA FINAL
   ============================================ */
.cta-final {
    padding: var(--space-section) 0;
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, var(--color-bg-darker) 100%);
    position: relative;
    overflow: hidden;
}

.cta-final::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(230, 57, 70, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.cta-final__content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-final__title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
    line-height: 1.2;
}

.cta-final__text {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.65;
    margin-bottom: var(--space-2xl);
}

.cta-final__buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

.cta-final__contact-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.cta-final__contact-info a {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.cta-final__contact-info a:hover {
    color: var(--color-white);
}

.cta-final__separator {
    color: rgba(255, 255, 255, 0.2);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: #090E17;
    padding: var(--space-4xl) 0 var(--space-xl);
    color: rgba(255, 255, 255, 0.6);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer__logo {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: var(--space-md);
}

.footer__logo .logo-alpha {
    color: var(--color-white);
}

.footer__tagline {
    font-size: var(--text-sm);
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.4);
}

.footer__heading {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer__links ul li {
    margin-bottom: var(--space-sm);
}

.footer__links ul li a,
.footer__contact ul li a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition-fast);
}

.footer__links ul li a:hover,
.footer__contact ul li a:hover {
    color: var(--color-white);
}

.footer__contact ul li {
    margin-bottom: var(--space-sm);
}

.footer__social {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.5);
    transition: all var(--transition-base);
}

.footer__social a:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-2px);
}

.footer__bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer__bottom p {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.3);
}

.footer__legal {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.2);
}

/* ============================================
   ANIMATIONS (Scroll-triggered)
   ============================================ */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Stagger children */
.services__grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services__grid .service-card:nth-child(3) { transition-delay: 0.2s; }
.services__grid .service-card:nth-child(4) { transition-delay: 0.3s; }
.services__grid .service-card:nth-child(5) { transition-delay: 0.4s; }
.services__grid .service-card:nth-child(6) { transition-delay: 0.5s; }

.trust__grid .trust__item:nth-child(2) { transition-delay: 0.08s; }
.trust__grid .trust__item:nth-child(3) { transition-delay: 0.16s; }
.trust__grid .trust__item:nth-child(4) { transition-delay: 0.24s; }
.trust__grid .trust__item:nth-child(5) { transition-delay: 0.32s; }

.why__grid .why__item:nth-child(2) { transition-delay: 0.1s; }
.why__grid .why__item:nth-child(3) { transition-delay: 0.2s; }
.why__grid .why__item:nth-child(4) { transition-delay: 0.3s; }
.why__grid .why__item:nth-child(5) { transition-delay: 0.4s; }
.why__grid .why__item:nth-child(6) { transition-delay: 0.5s; }

.sectors__grid .sector-card:nth-child(2) { transition-delay: 0.1s; }
.sectors__grid .sector-card:nth-child(3) { transition-delay: 0.2s; }
.sectors__grid .sector-card:nth-child(4) { transition-delay: 0.3s; }
.sectors__grid .sector-card:nth-child(5) { transition-delay: 0.4s; }
.sectors__grid .sector-card:nth-child(6) { transition-delay: 0.5s; }

.portfolio__grid .portfolio__item:nth-child(2) { transition-delay: 0.15s; }
.portfolio__grid .portfolio__item:nth-child(3) { transition-delay: 0.3s; }
.portfolio__grid .portfolio__item:nth-child(4) { transition-delay: 0.45s; }

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

    .trust__grid .trust__item:nth-child(4),
    .trust__grid .trust__item:nth-child(5) {
        grid-column: span 1;
    }

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

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

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

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

/* ============================================
   RESPONSIVE — MOBILE (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
    /* Header mobile */
    .header__menu-toggle {
        display: flex;
    }

    .header__nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--color-bg-dark);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: right var(--transition-slow);
        z-index: 1000;
    }

    .header__nav.active {
        right: 0;
    }

    .header__nav-list {
        flex-direction: column;
        gap: var(--space-2xl);
        text-align: center;
    }

    .header__nav-link {
        font-size: var(--text-xl);
        color: rgba(255, 255, 255, 0.85);
    }

    .header__nav-link--cta {
        font-size: var(--text-base);
    }

    /* Trust bar */
    .trust__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .trust__item {
        padding: var(--space-sm);
    }

    /* Services */
    .services__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    /* Why */
    .why__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .why__item {
        padding: var(--space-lg);
        background: var(--color-card-bg);
        border-radius: var(--radius-lg);
        border: 1px solid var(--color-border);
    }

    /* Portfolio */
    .portfolio__grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    /* Sectors */
    .sectors__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }

    .sector-card {
        padding: var(--space-xl);
    }

    /* Process */
    .process__steps {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }

    .process__step {
        padding: var(--space-lg) 0;
    }

    .process__connector {
        width: 2px;
        height: 40px;
        background: linear-gradient(180deg, var(--color-accent), var(--color-border));
        margin: 0;
    }

    /* Footer */
    .footer__grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    /* CTA buttons */
    .cta-final__buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero__ctas {
        flex-direction: column;
        align-items: center;
    }
}

/* ============================================
   RESPONSIVE — SMALL MOBILE (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
    .sectors__grid {
        grid-template-columns: 1fr;
    }

    .hero__content {
        padding: var(--space-4xl) var(--container-padding);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .header,
    .hero__scroll-indicator,
    .header__menu-toggle {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: var(--space-2xl) 0;
    }

    .animate-on-scroll {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   VIDEO MODAL
   ============================================ */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0.3s, opacity 0.3s ease;
}

.video-modal.active {
    visibility: visible;
    opacity: 1;
}

.video-modal__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 15, 25, 0.95);
    backdrop-filter: blur(10px);
}

.video-modal__container {
    position: relative;
    width: 90%;
    max-width: 1100px;
    z-index: 10000;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.video-modal.active .video-modal__container {
    transform: scale(1);
}

.video-modal__close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--color-white);
    cursor: pointer;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.video-modal__close:hover {
    opacity: 1;
}

.video-modal__content {
    background: var(--color-bg-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.video-modal__content video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}