/* ============================
   HoopoVR - Design System
   ============================ */

/* --- CSS Custom Properties --- */
:root {
    /* Colors */
    --clr-bg: #0a0a0f;
    --clr-bg-alt: #111118;
    --clr-surface: #1a1a24;
    --clr-surface-hover: #22222e;
    --clr-border: rgba(124, 58, 237, 0.15);
    --clr-border-hover: rgba(124, 58, 237, 0.35);

    --clr-text: #f1f0f5;
    --clr-text-muted: #9896a3;
    --clr-text-dim: #5e5c6b;

    --clr-primary: #7C3AED;
    --clr-primary-light: #9b6dff;
    --clr-primary-dark: #5b21b6;
    --clr-secondary: #06B6D4;
    --clr-secondary-light: #22d3ee;
    --clr-accent: #f472b6;

    --grad-primary: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
    --grad-primary-hover: linear-gradient(135deg, #9b6dff 0%, #22d3ee 100%);
    --grad-overlay: linear-gradient(135deg, rgba(10, 10, 15, 0.85) 0%, rgba(10, 10, 15, 0.4) 100%);
    --grad-overlay-dark: linear-gradient(180deg, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.95) 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(124, 58, 237, 0.3);
    --shadow-glow-lg: 0 0 60px rgba(124, 58, 237, 0.2);

    /* Typography */
    --font-ar: 'Cairo', sans-serif;
    --font-en: 'Outfit', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slider: 800ms cubic-bezier(0.77, 0, 0.175, 1);

    /* Header */
    --header-height: 80px;

    /* Z-index */
    --z-header: 1000;
    --z-slider-controls: 50;
    --z-slider-content: 30;
    --z-particles: 10;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-ar);
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

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

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

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

/* --- Utility --- */
.gradient-text {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================
   HEADER
   ============================ */
.header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    height: var(--header-height);
    z-index: var(--z-header);
    transition: var(--transition-base);
    background: transparent;
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--clr-border);
    box-shadow: var(--shadow-md);
}

.header__container {
    max-width: 1400px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-xl);
}

/* Logo */
.header__logo {
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
}

.header__logo:hover {
    transform: scale(1.03);
}

.header__logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

/* Navigation */
.header__nav {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.header__nav-link {
    position: relative;
    padding: var(--space-sm) var(--space-md);
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--clr-text-muted);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.header__nav-link:hover {
    color: var(--clr-text);
    background: rgba(124, 58, 237, 0.08);
}

.header__nav-link.active {
    color: var(--clr-text);
}

.header__nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 50%;
    transform: translateX(50%);
    width: 20px;
    height: 3px;
    background: var(--grad-primary);
    border-radius: var(--radius-full);
}

/* Actions */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header__btn {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 10px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    white-space: nowrap;
}

.header__btn--ghost {
    color: var(--clr-text-muted);
    border: 1px solid transparent;
}

.header__btn--ghost:hover {
    color: var(--clr-text);
    background: rgba(124, 58, 237, 0.1);
    border-color: var(--clr-border);
}

.header__btn--primary {
    background: var(--grad-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.header__btn--primary:hover {
    background: var(--grad-primary-hover);
    box-shadow: var(--shadow-glow-lg);
    transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.header__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    padding: 4px 0;
}

.header__menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--clr-text);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    transform-origin: center;
}

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

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

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

/* ============================
   HERO SLIDER
   ============================ */
.slider {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: var(--clr-bg);
}

.slider__track {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Slide */
.slider__slide {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slider), visibility var(--transition-slider);
}

.slider__slide.active {
    opacity: 1;
    visibility: visible;
}

/* Background */
.slider__bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.slider__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    transform: scale(1.05);
    transition: transform 8s ease-out;
}

.slider__slide.active .slider__bg img {
    transform: scale(1);
}

.slider__overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 15, 0.55);
}

.slider__overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to left, rgba(10, 10, 15, 0.85) 0%, rgba(10, 10, 15, 0.6) 35%, rgba(10, 10, 15, 0.2) 65%, transparent 100%);
}

/* Content */
.slider__content {
    position: relative;
    z-index: var(--z-slider-content);
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: calc(var(--header-height) + var(--space-3xl)) var(--space-xl) var(--space-3xl);
}

/* Badge */
.slider__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 6px 16px;
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--clr-primary-light);
    width: fit-content;
    backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease 0.2s, transform 0.6s ease 0.2s;
}

.slider__slide.active .slider__badge {
    opacity: 1;
    transform: translateY(0);
}

.slider__badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

/* Title */
.slider__title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.2;
    margin-top: var(--space-lg);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.35s, transform 0.6s ease 0.35s;
}

.slider__slide.active .slider__title {
    opacity: 1;
    transform: translateY(0);
}

/* Description */
.slider__desc {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
    max-width: 560px;
    margin-top: var(--space-lg);
    line-height: 1.8;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.5s, transform 0.6s ease 0.5s;
}

.slider__slide.active .slider__desc {
    opacity: 1;
    transform: translateY(0);
}

/* Buttons */
.slider__btns {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.65s, transform 0.6s ease 0.65s;
}

.slider__slide.active .slider__btns {
    opacity: 1;
    transform: translateY(0);
}

.slider__btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.slider__btn--primary {
    background: var(--grad-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.slider__btn--primary:hover {
    background: var(--grad-primary-hover);
    box-shadow: var(--shadow-glow-lg);
    transform: translateY(-2px);
}

.slider__btn--outline {
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    color: var(--clr-text);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
}

.slider__btn--outline:hover {
    border-color: var(--clr-primary-light);
    background: rgba(124, 58, 237, 0.1);
    transform: translateY(-2px);
}

/* Stats */
.slider__stats {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease 0.8s, transform 0.6s ease 0.8s;
}

.slider__slide.active .slider__stats {
    opacity: 1;
    transform: translateY(0);
}

.slider__stat {
    text-align: center;
}

.slider__stat-num {
    font-family: var(--font-en);
    font-size: 2rem;
    font-weight: 800;
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.slider__stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--clr-text-muted);
    margin-top: 2px;
}

.slider__stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

/* Slider Controls */
.slider__controls {
    position: absolute;
    bottom: var(--space-3xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-slider-controls);
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.slider__arrow {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.15);
    color: var(--clr-text);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition-base);
}

.slider__arrow:hover {
    border-color: var(--clr-primary);
    background: rgba(124, 58, 237, 0.15);
    color: var(--clr-primary-light);
    transform: scale(1.08);
}

.slider__dots {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.slider__dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-base);
    position: relative;
}

.slider__dot:hover {
    background: rgba(255, 255, 255, 0.35);
}

.slider__dot.active {
    background: transparent;
    border-color: var(--clr-primary);
    width: 40px;
    border-radius: var(--radius-full);
}

.slider__dot.active::after {
    content: '';
    position: absolute;
    top: 3px;
    right: 3px;
    bottom: 3px;
    left: 3px;
    background: var(--grad-primary);
    border-radius: var(--radius-full);
}

/* Slider Progress */
.slider__progress {
    position: absolute;
    bottom: 0;
    right: 0;
    left: 0;
    height: 3px;
    background: rgba(255, 255, 255, 0.05);
    z-index: var(--z-slider-controls);
}

.slider__progress-bar {
    height: 100%;
    background: var(--grad-primary);
    width: 0;
    transition: width 0.1s linear;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

/* Floating Particles */
.particles {
    position: absolute;
    inset: 0;
    z-index: var(--z-particles);
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--clr-primary);
    opacity: 0;
    animation: floatParticle var(--duration) var(--delay) ease-in-out infinite;
}

@keyframes floatParticle {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: var(--opacity);
    }
    90% {
        opacity: var(--opacity);
    }
    100% {
        opacity: 0;
        transform: translateY(-100px) scale(1);
    }
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 1024px) {
    .header__nav {
        position: fixed;
        top: var(--header-height);
        right: 0;
        left: 0;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-xs);
        border-bottom: 1px solid var(--clr-border);
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }

    .header__nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .header__nav-link {
        width: 100%;
        padding: var(--space-md);
        border-radius: var(--radius-md);
        text-align: center;
        font-size: 1rem;
    }

    .header__nav-link.active::after {
        bottom: 8px;
    }

    .header__menu-toggle {
        display: flex;
    }

    .header__btn--ghost {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    .header__container {
        padding: 0 var(--space-md);
    }

    .slider__content {
        padding: calc(var(--header-height) + var(--space-xl)) var(--space-md) var(--space-4xl);
    }

    .slider__title {
        font-size: clamp(1.8rem, 7vw, 2.8rem);
    }

    .slider__desc {
        font-size: 0.95rem;
    }

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

    .slider__btn {
        justify-content: center;
        padding: 14px 24px;
    }

    .slider__stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }

    .slider__stat-num {
        font-size: 1.6rem;
    }

    .slider__stat-divider {
        display: none;
    }

    .slider__controls {
        bottom: var(--space-2xl);
    }

    .slider__arrow {
        width: 40px;
        height: 40px;
    }

    .header__btn--primary {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .slider__stats {
        justify-content: space-around;
        width: 100%;
    }

    .slider__stat {
        min-width: 80px;
    }

    .slider__badge {
        font-size: 0.75rem;
    }
}

/* ============================
   ANIMATIONS
   ============================ */

/* Subtle shimmer on gradient text */
@keyframes shimmer {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.gradient-text {
    background-size: 200% 200%;
    animation: shimmer 4s ease-in-out infinite;
}

/* Glow pulse for primary buttons */
@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 20px rgba(124, 58, 237, 0.3); }
    50% { box-shadow: 0 0 40px rgba(124, 58, 237, 0.5); }
}

.slider__btn--primary {
    animation: glowPulse 3s ease-in-out infinite;
}

.slider__btn--primary:hover {
    animation: none;
}