/* ============================================
   REIGNON — Design System & Landing Page Styles
   High-End · Pure Black · Minimal
   ============================================ */

/* --- Design Tokens --- */
:root {
    /* Primary */
    --tangelo: #FF4400;
    --tangelo-hover: #E63D00;
    --tangelo-glow: rgba(255, 68, 0, 0.15);
    --tangelo-subtle: rgba(255, 68, 0, 0.06);
    --black: #000000;
    --white: #FFFFFF;
    --white-smoke: #F2F2F2;
    --platinum: #CAD6D8;

    /* Gray scale */
    --gray-950: #0A0A0A;
    --gray-900: #111111;
    --gray-800: #1A1A1A;
    --gray-700: #2A2A2A;
    --gray-600: #3A3A3A;
    --gray-500: #666666;
    --gray-400: #888888;
    --gray-300: #AAAAAA;
    --gray-200: #D0D0D0;
    --gray-100: #F2F4F7;

    /* Typography */
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 96px;
    --space-5xl: 128px;

    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

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

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

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-300);
    background-color: var(--black);
    overflow-x: hidden;
    min-height: 100vh;
}

::selection {
    background-color: var(--tangelo);
    color: var(--black);
}

/* --- Grain Overlay --- */
.grain {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
}

/* --- Top Banner --- */
.top-banner {
    background-color: var(--tangelo);
    color: var(--black);
    text-align: center;
    padding: 8px var(--space-md);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    position: relative;
    z-index: 100;
}

/* --- Hero --- */
.hero {
    position: relative;
    height: calc(100vh - 35px);
    /* Full height minus top banner */
    min-height: 600px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
}

/* Left side — Logo + Tagline */
.hero__left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 var(--space-3xl) 0 12%;
    position: relative;
    z-index: 2;
    height: 100%;
}

.hero__logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    margin-bottom: var(--space-3xl);
    opacity: 0;
    animation: fade-in 1s var(--ease-out) 0.2s forwards;
}

.hero__logo-img {
    height: 19px;
    width: auto;
    filter: brightness(0) invert(1);
    transition: opacity var(--duration-fast) var(--ease-out);
}

.hero__logo:hover .hero__logo-img {
    opacity: 0.7;
}

.hero__tagline {
    font-family: var(--font-display);
    font-size: clamp(36px, 4.5vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: var(--space-sm);
    opacity: 0;
    animation: fade-up 0.9s var(--ease-out) 0.5s forwards;
}

.hero__subtitle {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--tangelo);
    margin-bottom: var(--space-2xl);
    opacity: 0;
    animation: fade-up 0.9s var(--ease-out) 0.65s forwards;
}

.hero__cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--black);
    background: var(--tangelo);
    border: none;
    border-radius: var(--radius-full);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    width: fit-content;
    opacity: 0;
    animation: fade-up 0.9s var(--ease-out) 0.8s forwards;
}

.hero__cta:hover {
    background: var(--tangelo-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(255, 68, 0, 0.25);
}

.hero__cta:active {
    transform: translateY(0);
}

.hero__cta svg {
    transition: transform var(--duration-fast) var(--ease-out);
}

.hero__cta:hover svg {
    transform: translateX(4px);
}

/* Right side — Hero image area */
.hero__right {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    overflow: hidden;
    height: 100%;
}

.hero__image {
    width: 100%;
    max-width: 600px;
    height: auto;
    object-fit: contain;
    opacity: 0;
    animation: fade-in 1.2s var(--ease-out) 0.6s forwards;
    filter: drop-shadow(0 0 40px rgba(255, 68, 0, 0.15));
}

/* Subtle vertical line separating hero from form */
.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 80px;
    background: linear-gradient(to bottom, transparent, rgba(255, 68, 0, 0.2));
    opacity: 0;
    animation: fade-in 1s var(--ease-out) 1.5s forwards;
}

/* --- Divider --- */
.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(to right,
            transparent,
            rgba(255, 255, 255, 0.06) 20%,
            rgba(255, 255, 255, 0.06) 80%,
            transparent);
}

/* --- Form Section --- */
.form-section {
    position: relative;
    padding: var(--space-5xl) var(--space-lg);
}

.form-section__inner {
    max-width: 720px;
    margin: 0 auto;
}

.form-section__header {
    margin-bottom: var(--space-3xl);
}

.form-section__label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--tangelo);
    margin-bottom: var(--space-md);
}

.form-section__title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: var(--space-md);
}

.form-section__desc {
    font-size: 15px;
    color: var(--gray-500);
    max-width: 460px;
    line-height: 1.6;
}

/* --- Form --- */
.form__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.form__group--full {
    grid-column: 1 / -1;
}

.form__label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-400);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.form__input {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 15px;
    color: var(--white);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--duration-normal) var(--ease-out);
}

.form__input::placeholder {
    color: var(--gray-600);
}

.form__input:hover {
    border-color: rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
}

.form__input:focus {
    border-color: var(--tangelo);
    background: rgba(255, 68, 0, 0.03);
    box-shadow: 0 0 0 3px rgba(255, 68, 0, 0.08);
}

.form__input--error {
    border-color: #EF4444 !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

.form__textarea {
    resize: vertical;
    min-height: 100px;
}

.form__error {
    display: block;
    font-size: 12px;
    color: #EF4444;
    margin-top: var(--space-xs);
    min-height: 16px;
    opacity: 0;
    transform: translateY(-4px);
    transition: all var(--duration-fast) var(--ease-out);
}

.form__error--visible {
    opacity: 1;
    transform: translateY(0);
}

/* Chips */
.form__chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.chip {
    padding: 9px 20px;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-400);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    user-select: none;
}

.chip:hover {
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--white);
    transform: translateY(-1px);
}

.chip--active {
    color: var(--black);
    background: var(--tangelo);
    border-color: var(--tangelo);
}

.chip--active:hover {
    background: var(--tangelo-hover);
    border-color: var(--tangelo-hover);
    color: var(--black);
    transform: translateY(-1px);
}

/* Submit */
.form__submit {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 16px 40px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--black);
    background: var(--tangelo);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    position: relative;
    overflow: hidden;
}

.form__submit:hover {
    background: var(--tangelo-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 40px rgba(255, 68, 0, 0.25);
}

.form__submit:active {
    transform: translateY(0);
}

.form__submit:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.form__submit-loading {
    display: none;
}

.form__submit--loading .form__submit-text {
    opacity: 0;
}

.form__submit--loading .form__submit-loading {
    display: flex;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.form__submit--loading .form__submit-arrow {
    display: none;
}

.form__submit-arrow {
    transition: transform var(--duration-fast) var(--ease-out);
}

.form__submit:hover .form__submit-arrow {
    transform: translateX(4px);
}

/* Success State */
.form-success {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
    animation: fade-up 0.6s var(--ease-out) forwards;
}

.form-success__icon {
    margin-bottom: var(--space-lg);
    animation: success-bounce 0.6s var(--ease-spring) forwards;
}

@keyframes success-bounce {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.form-success__title {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.form-success__desc {
    font-size: 15px;
    color: var(--gray-500);
    max-width: 400px;
    margin: 0 auto;
}

/* Post-form full-width photo */
.section-photo {
    width: 100%;
    height: 480px;
    margin-top: var(--space-3xl);
    overflow: hidden;
}

.section-photo__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
    display: block;
    filter: brightness(0.9);
    transition: filter var(--duration-slow) var(--ease-out);
}

.section-photo:hover .section-photo__img {
    filter: brightness(1);
}

/* --- WhatsApp Floating Button --- */
@keyframes border-spin {
    from {
        --angle: 0deg;
    }

    to {
        --angle: 360deg;
    }
}

@property --angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.whatsapp-btn {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    background: var(--black);
    color: var(--tangelo);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.08em;
    transition: all var(--duration-normal) var(--ease-out);
    animation: fade-up 0.6s var(--ease-out) 2s both;
    /* Animated border via outline trick */
    border: 1px solid transparent;
    background-clip: padding-box;
    position: fixed;
    isolation: isolate;
}

/* Animated spinning orange border */
.whatsapp-btn::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: conic-gradient(from var(--angle),
            var(--tangelo) 0%,
            transparent 30%,
            var(--tangelo) 60%,
            transparent 80%,
            var(--tangelo) 100%);
    z-index: -1;
    animation: border-spin 4s linear infinite;
}

/* Black inner fill */
.whatsapp-btn::after {
    content: '';
    position: absolute;
    inset: 1px;
    border-radius: calc(var(--radius-full) - 2px);
    background: var(--black);
    z-index: -1;
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(255, 68, 0, 0.3);
    color: #fff;
}

.whatsapp-btn:active {
    transform: translateY(-1px);
}

.whatsapp-btn svg {
    flex-shrink: 0;
    fill: currentColor;
}

.whatsapp-btn__text {
    white-space: nowrap;
}

/* --- Footer --- */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding: var(--space-xl) var(--space-lg);
    margin-top: var(--space-4xl);
}

.footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.footer__logo {
    height: 16px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.3;
}

.footer__copy {
    font-size: 11px;
    color: var(--gray-600);
    letter-spacing: 0.02em;
}

.footer__tagline {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gray-600);
}

/* --- Animations --- */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* --- Scroll reveal --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal--visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        height: auto;
        min-height: 500px;
    }

    .hero__left {
        padding: var(--space-4xl) var(--space-xl) var(--space-xl);
        min-height: auto;
        align-items: center;
        text-align: center;
    }

    .hero__right {
        min-height: auto;
        padding: var(--space-lg) var(--space-xl) var(--space-4xl);
    }

    .hero__image {
        max-width: 300px;
        object-position: center;
    }

    .hero::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .form-section {
        padding: var(--space-3xl) var(--space-md);
    }

    .form-section__title {
        font-size: clamp(24px, 6vw, 32px);
    }

    .form__grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .footer__inner {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .footer__left {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .top-banner {
        font-size: 10px;
        padding: 8px var(--space-sm);
    }

    .hero__left {
        padding: var(--space-3xl) var(--space-md) var(--space-lg);
    }

    .hero__tagline {
        font-size: 32px;
        margin-bottom: var(--space-xl);
    }

    .hero__right {
        padding: var(--space-md) var(--space-md) var(--space-3xl);
    }

    .hero__image {
        max-width: 220px;
    }

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

    .form-section {
        padding: var(--space-2xl) var(--space-md);
    }

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

    .chip {
        font-size: 12px;
        padding: 8px 16px;
    }
}