/* ============================================================
   AKUPANK — Stealth Landing Page
   ============================================================ */

/* --- Design Tokens (matching main site) --- */
:root {
    --navy-950: #080e19;
    --navy-900: #0c1524;
    --navy-800: #101d31;
    --navy-700: #152238;
    --green-500: #6BCB77;
    --green-400: #85d68f;
    --green-600: #4fb85a;
    --green-700: #3a9e45;
    --green-glow: rgba(107, 203, 119, 0.25);
    --green-glow-strong: rgba(107, 203, 119, 0.45);
    --white: #ffffff;
    --gray-100: #f0f4f8;
    --gray-200: #dce4ed;
    --gray-400: #8298b0;
    --gray-500: #607a93;
    --font-heading: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--navy-950);
    color: var(--gray-200);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Particle Canvas --- */
#particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

/* --- Hero Layout --- */
.hero {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    text-align: center;
}

.hero__content {
    max-width: 540px;
    width: 100%;
}

/* --- Logo --- */
.logo-wrap {
    position: relative;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.logo {
    position: relative;
    width: 120px;
    height: 120px;
    z-index: 1;
    filter: drop-shadow(0 0 8px rgba(107, 203, 119, 0.3));
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 180px;
    height: 180px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, var(--green-glow-strong) 0%, rgba(107, 203, 119, 0.12) 50%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 3s ease-in-out infinite;
    z-index: 0;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50%      { opacity: 1;   transform: translate(-50%, -50%) scale(1.15); }
}

/* --- Brand Name with Shimmer --- */
.brand-name {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.shimmer {
    display: inline-block;
    background: linear-gradient(
        90deg,
        var(--gray-200) 0%,
        var(--gray-200) 35%,
        var(--green-400) 50%,
        var(--gray-200) 65%,
        var(--gray-200) 100%
    );
    background-size: 250% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer-slide 4s ease-in-out infinite;
}

@keyframes shimmer-slide {
    0%   { background-position: 100% 50%; }
    100% { background-position: -50% 50%; }
}

/* --- Tagline --- */
.tagline {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--gray-400);
    letter-spacing: 0.02em;
    margin-bottom: 2rem;
}

/* --- Divider --- */
.divider {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--green-500), transparent);
    margin: 0 auto 2rem;
    opacity: 0.6;
}

/* --- Teaser --- */
.teaser {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--gray-500);
    margin-bottom: 2.5rem;
}

/* --- Email Signup --- */
.signup__row {
    display: flex;
    gap: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(107, 203, 119, 0.12);
    background: rgba(21, 34, 56, 0.4);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.signup__row:focus-within {
    border-color: rgba(107, 203, 119, 0.35);
    box-shadow: 0 0 0 3px rgba(107, 203, 119, 0.1);
}

.signup__input {
    flex: 1;
    min-width: 0;
    padding: 0.875rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--white);
    background: transparent;
    border: none;
    outline: none;
}

.signup__input::placeholder {
    color: var(--gray-500);
}

.signup__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--navy-950);
    background: var(--green-500);
    border: none;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.25s ease;
    position: relative;
}

.signup__btn:hover {
    background: var(--green-400);
}

.signup__btn:active {
    background: var(--green-600);
}

.signup__btn-loading {
    display: none;
}

.signup__btn--loading .signup__btn-text {
    visibility: hidden;
}

.signup__btn--loading .signup__btn-loading {
    display: block;
    position: absolute;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Message */
.signup__message {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    min-height: 1.25em;
    transition: opacity 0.3s ease;
}

.signup__message--success {
    color: var(--green-400);
}

.signup__message--error {
    color: #e57373;
}

/* --- Footer --- */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1;
    text-align: center;
    padding: 1.25rem 2rem;
    font-size: 0.75rem;
    color: var(--gray-500);
    letter-spacing: 0.02em;
}

/* --- prefers-reduced-motion --- */
@media (prefers-reduced-motion: reduce) {
    .logo-glow  { animation: none; opacity: 0.7; }
    .shimmer    { animation: none; background-position: 50% 50%; }
    #particles  { display: none; }
    .signup__btn-loading svg { animation: none; }
}

/* --- Responsive --- */
@media (max-width: 480px) {
    .hero { padding: 1.5rem 1rem; }

    .signup__row {
        flex-direction: column;
        border-radius: 12px;
    }

    .signup__input {
        border-bottom: 1px solid rgba(107, 203, 119, 0.08);
    }

    .signup__btn {
        padding: 0.875rem;
        border-radius: 0;
    }

    .brand-name {
        font-size: clamp(2rem, 10vw, 3rem);
    }
}