:root {
    --bg:       #283050;
    --surface:  #494966;
    --border:   rgba(255,255,255,0.07);
    --accent:   #7CA7F0;
    --accent2:  #761896;
    --text:     #CFCFFF;
    --muted:    rgba(232,232,240,0.65);
    --success:  #3ecf8e;
    --error:    #ff4f6a;
    --radius:   16px;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ** Background ** */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
    animation: orbFloat 12s ease-in-out infinite alternate;
}
.orb-1 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #4f8fff 0%, transparent 70%);
    top: -120px; right: -100px;
}
.orb-2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #a259ff 0%, transparent 70%);
    bottom: 0; left: -80px;
    animation-delay: -6s;
}
@keyframes orbFloat {
    from { transform: translate(0, 0); }
    to   { transform: translate(30px, 40px); }
}

/* ** Layout ** */
.wrapper {
    position: relative;
    z-index: 1;
    max-width: 780px;
    margin: 0 auto;
    padding: 64px 24px 96px;
}

/* ** Header ** */
header {
    text-align: center;
    margin-bottom: 56px;
    padding: 48px 24px;
    border-radius: 20px;
    background: linear-gradient(160deg, rgba(79,143,255,0.18), rgba(162,89,255,0.12));
    border: 1px solid var(--border);
    animation: fadeUp 0.7s ease both;
}
header h1 {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: clamp(2.2rem, 5vw, 3.2rem);
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 16px;
}
header h1 span {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
header p {
    color: var(--muted);
    font-size: 1.05rem;
    font-weight: 300;
    max-width: 420px;
    margin: 0 auto;
}

/* ** Card ** */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 48px;
    backdrop-filter: blur(12px);
    box-shadow: 0 24px 80px rgba(0,0,0,0.5);
    animation: fadeUp 0.7s 0.15s ease both;
}
@media (max-width: 560px) { .card { padding: 28px 20px; } }

/* ** Form ** */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

.field {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.field.full { grid-column: 1 / -1; }

.field-split {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 20px;
    grid-column: 1 / -1;
    align-items: start;
}

#contactSplitGrid .left {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#contactSplitGrid img {
    width: 100%;
    opacity: 0.6;
    border-radius: 16px;
    box-shadow: 0 0 10px 10px rgba(255,215,0,0.15);
}

@media (max-width: 560px) {
    #contactSplitGrid {
        grid-template-columns: 1fr;
    }
    #contactSplitGrid img {
        display: none;
    }
}

label {
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
}

input, textarea {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    width: 100%;
}
input::placeholder, textarea::placeholder { color: var(--muted); }
input:focus, textarea:focus {
    border-color: var(--accent);
    background: rgba(79,143,255,0.06);
    box-shadow: 0 0 0 3px rgba(79,143,255,0.15);
}
input:-webkit-autofill {
    -webkit-box-shadow: 0 0 0 100px var(--surface) inset;
    -webkit-text-fill-color: var(--text);
}
textarea { resize: vertical; min-height: 120px; }

/* ** Section labels ** */
.section-label {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 8px 0 4px;
}
.section-label span {
    font-family: 'Syne', sans-serif;
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    white-space: nowrap;
}
.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ** Slot picker ** */
.slots-grid {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 10px;
}
.slot {
    padding: 12px 10px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: rgba(255,255,255,0.03);
    text-align: center;
    cursor: pointer;
    transition: all 0.18s;
    user-select: none;
}
.slot:hover:not(.booked) { border-color: var(--accent); background: rgba(79,143,255,0.08); }
.slot.selected {
    border-color: var(--accent);
    background: rgba(79,143,255,0.14);
    box-shadow: 0 0 0 3px rgba(79,143,255,0.15);
}
.slot.booked {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}
.slot-day  { font-size: 0.75rem; color: var(--muted); margin-bottom: 4px; }
.slot-time { font-family: 'Syne', sans-serif; font-weight: 600; font-size: 0.95rem; }
.slot-taken { font-size: 0.68rem; color: var(--muted); margin-top: 3px; font-style: italic; }

.slots-loading {
    grid-column: 1 / -1;
    color: var(--muted);
    font-size: 0.85rem;
    padding: 8px 0;
}

/* ** Slot calendar navigation ** */
.slots-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.slots-nav-btn {
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    cursor: pointer;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.82rem;
    padding: 6px 14px;
    transition: border-color 0.18s, background 0.18s;
}
.slots-nav-btn:hover:not(:disabled) { border-color: var(--accent); background: rgba(79,143,255,0.08); }
.slots-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ** Submit ** */
.btn-submit {
    grid-column: 1 / -1;
    margin-top: 12px;
    padding: 17px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: #fff;
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
    box-shadow: 0 6px 30px rgba(79,143,255,0.3);
}
.btn-submit:hover { opacity: 0.92; transform: translateY(-1px); box-shadow: 0 12px 40px rgba(79,143,255,0.4); }
.btn-submit:active { transform: translateY(0); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-inner { display: flex; align-items: center; justify-content: center; gap: 10px; }
.spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ** Toast ** */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 28px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.92rem;
    font-weight: 500;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    opacity: 0;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 100;
    pointer-events: none;
    max-width: 420px;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ** Success overlay ** */
.success-overlay {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 0;
    gap: 20px;
    animation: fadeUp 0.5s ease both;
}
.success-overlay.show { display: flex; }
.success-check {
    width: 72px; height: 72px;
    background: rgba(62,207,142,0.12);
    border: 1px solid rgba(62,207,142,0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}
.success-overlay h2 {
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 1.8rem;
    letter-spacing: -0.03em;
}
.success-overlay > p { color: var(--muted); max-width: 360px; }
.zoom-link-box {
    background: rgba(79,143,255,0.08);
    border: 1px solid rgba(79,143,255,0.25);
    border-radius: 14px;
    padding: 18px 24px;
    width: 100%;
    max-width: 420px;
    text-align: left;
}
.zoom-link-box .zlb-label {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 8px;
}
.zoom-link-box a {
    color: var(--accent);
    font-size: 0.88rem;
    word-break: break-all;
    text-decoration: none;
}
.zoom-link-box a:hover { text-decoration: underline; }
.btn-reset {
    padding: 12px 28px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 8px;
}
.btn-reset:hover { border-color: rgba(255,255,255,0.2); color: var(--text); }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}