:root {
    --bg: #09090B;
    --bg-surface: #0F172A;
    --panel: rgba(15, 23, 42, 0.7);
    --panel-strong: rgba(15, 23, 42, 0.9);
    --panel-soft: rgba(255, 255, 255, 0.02);
    --border: rgba(71, 85, 105, 0.35);
    --border-soft: rgba(255, 255, 255, 0.08);
    --emerald: #10B981;
    --emerald-strong: #22C55E;
    --text: #F8FAFC;
    --muted: #94A3B8;
    --shadow: rgba(16, 185, 129, 0.18);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

a, button, input, textarea {
    font: inherit;
}

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

.glow-emerald {
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.glow-emerald-sm {
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.2);
}

.glass-effect {
    background: var(--panel);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
}

.gradient-emerald-text {
    background: linear-gradient(135deg, var(--emerald) 0%, var(--emerald-strong) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hover-lift {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.18);
}

.btn-primary,
.btn-secondary {
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.25s ease;
    display: inline-block;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--emerald) 0%, var(--emerald-strong) 100%);
    color: white;
    padding: 12px 28px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--emerald);
    padding: 12px 28px;
    border-color: var(--emerald);
}

.btn-secondary:hover {
    background: rgba(16, 185, 129, 0.08);
    transform: translateY(-2px);
}

.booking-picker {
    overflow: hidden;
    border: 1px solid rgba(71, 85, 105, 0.55);
    border-radius: 14px;
    background: rgba(9, 9, 11, 0.62);
}

.booking-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.1rem;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.13), rgba(15, 23, 42, 0.35));
    border-bottom: 1px solid rgba(71, 85, 105, 0.35);
}

.booking-picker-kicker {
    margin-bottom: 0.15rem;
    color: var(--emerald);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.booking-picker-selected {
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
}

.booking-picker-icon {
    display: grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: 10px;
    color: var(--emerald);
    font-size: 1.15rem;
}

.booking-calendar {
    padding: 1rem 1.1rem 0.85rem;
}

.booking-calendar-nav,
.booking-time-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.booking-calendar-nav strong {
    color: var(--text);
    font-size: 0.9rem;
    text-transform: capitalize;
}

.booking-calendar-button {
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border: 1px solid rgba(71, 85, 105, 0.5);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--muted);
    cursor: pointer;
    font-size: 1.5rem;
    line-height: 1;
    transition: all 0.2s ease;
}

.booking-calendar-button:hover {
    border-color: var(--emerald);
    color: var(--emerald);
}

.booking-weekdays,
.booking-calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.25rem;
}

.booking-weekdays {
    margin: 1rem 0 0.4rem;
    color: #64748B;
    font-size: 0.65rem;
    font-weight: 700;
    text-align: center;
    text-transform: uppercase;
}

.booking-day {
    min-height: 2.15rem;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: #CBD5E1;
    cursor: pointer;
    font-size: 0.78rem;
    transition: all 0.2s ease;
}

.booking-day:hover:not(:disabled) {
    border-color: rgba(16, 185, 129, 0.55);
    background: rgba(16, 185, 129, 0.1);
    color: white;
}

.booking-day.is-today {
    border-color: rgba(16, 185, 129, 0.55);
    color: var(--emerald);
    font-weight: 700;
}

.booking-day.is-selected {
    border-color: var(--emerald);
    background: var(--emerald);
    color: #04130d;
    font-weight: 800;
}

.booking-day:disabled {
    color: #334155;
    cursor: not-allowed;
}

.booking-time-row {
    margin: 0 1.1rem 1.1rem;
    padding-top: 0.85rem;
    border-top: 1px solid rgba(71, 85, 105, 0.35);
}

.booking-time-row label {
    color: #94A3B8;
    font-size: 0.8rem;
    font-weight: 600;
}

.booking-time-row select {
    min-width: 8.6rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid rgba(71, 85, 105, 0.55);
    border-radius: 8px;
    outline: none;
    background: #0F172A;
    color: var(--text);
    cursor: pointer;
    font-size: 0.8rem;
}

.booking-time-row select:focus {
    border-color: var(--emerald);
}

.booking-date-value {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

@media (max-width: 420px) {
    .booking-calendar {
        padding-inline: 0.7rem;
    }

    .booking-time-row {
        margin-inline: 0.7rem;
    }
}

.panel-card,
.service-card,
.founder-card,
.step-card,
.info-card {
    background: rgba(15, 23, 42, 0.62);
    border: 1px solid var(--border-soft);
    border-radius: 16px;
    transition: all 0.25s ease;
}

.step-card,
.info-card {
    padding: 1rem 1.1rem;
    background: var(--panel-soft);
    border-color: var(--border-soft);
}

.step-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.step-card:hover,
.info-card:hover,
.service-card:hover,
.founder-card:hover {
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 12px 28px rgba(16, 185, 129, 0.12);
}

.service-card {
    padding: 32px 24px;
}

.service-card:hover {
    transform: translateY(-8px);
    background: rgba(15, 23, 42, 0.8);
}

.founder-card {
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.founder-card:hover {
    transform: translateY(-8px);
}

.founder-image {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.3), rgba(34, 197, 94, 0.2));
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: rgba(16, 185, 129, 0.5);
}

.animated-bg {
    background: linear-gradient(-45deg, #10B981, #22C55E, #0F172A, #09090B);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

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

/* 3D tilt / glow effect */
.service-card, .founder-card {
    transition: transform 0.15s ease-out, box-shadow 0.25s ease;
    transform-style: preserve-3d;
    position: relative;
    overflow: hidden;
}

.service-card::before, .founder-card::before {
    content: '';
    position: absolute;
    top: var(--mouse-y, -150px);
    left: var(--mouse-x, -150px);
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.18) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    transition: opacity 0.3s ease;
    opacity: 0;
    z-index: 1;
}

.service-card:hover::before, .founder-card:hover::before {
    opacity: 1;
}

.details-panel summary::-webkit-details-marker {
    display: none;
}

details[open] summary .faq-icon {
    transform: rotate(180deg);
}