@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    --cm-green-dark: #007a3e;
    --cm-green-medium: #48a23f;
    --cm-green-light: #e8f3ed;
    --cm-green-mist: #f0f7f3;
    --cm-near-black: #212322;
    --cm-text-body: #404040;
    --cm-text-secondary: #606060;
    --cm-text-muted: #888888;
    --cm-bg: #f5f7f6;
    --cm-white: #fff;
    --cm-border: #d4ddd7;
    --cm-border-light: #e8ede9;
    --cm-error-red: #c53030;
    --cm-error-bg: #fff5f5;
    --cm-error-border: #feb2b2;
    --cm-warning-bg: #fef9e7;
    --cm-warning-text: #7a6012;
    --cm-success-bg: #e8f3ed;
    --cm-success-text: #1a5c2e;
    --cm-teal: #339ec8;
    --cm-slate: #354a5f;
    --cm-radius: 10px;
    --cm-radius-sm: 6px;
    --cm-radius-lg: 14px;
    --cm-radius-pill: 99px;
    --cm-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --cm-shadow: 0 4px 12px rgba(0, 0, 0, 0.07), 0 1px 3px rgba(0, 0, 0, 0.05);
    --cm-shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
    --cm-font-body: "Montserrat", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    font-family: var(--cm-font-body);
    line-height: 1.6;
    color: var(--cm-text-body);
    background: var(--cm-bg);
    background-image:
        radial-gradient(ellipse at 30% -10%, rgba(0, 122, 62, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 110%, rgba(0, 122, 62, 0.03) 0%, transparent 50%);
    min-height: 100vh;
}

.container {
    max-width: 560px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Header / Logo */
header {
    text-align: center;
    margin-bottom: 2.25rem;
}

.header-logo {
    max-width: 360px;
    width: 100%;
    height: auto;
}

/* Steps */
.step {
    background: var(--cm-white);
    border-radius: var(--cm-radius-lg);
    padding: 2.25rem;
    box-shadow: var(--cm-shadow);
    margin-bottom: 1.5rem;
    border: 1px solid var(--cm-border-light);
    position: relative;
    animation: slideUp 0.35s ease;
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--cm-radius-lg) var(--cm-radius-lg) 0 0;
    background: linear-gradient(90deg, var(--cm-green-dark), var(--cm-green-medium));
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.step.hidden {
    display: none;
}

.step h2 {
    font-family: var(--cm-font-body);
    font-size: 1.3rem;
    color: var(--cm-near-black);
    margin-bottom: 0.6rem;
    font-weight: 700;
}

.step p {
    margin-bottom: 1rem;
    color: var(--cm-text-secondary);
    font-size: 0.92rem;
}

/* Code input */
.code-input-group {
    display: inline-flex;
    gap: 0;
    margin-top: 1.25rem;
}

.code-input-group input {
    width: 17.5rem;
    padding: 0.8rem 1rem;
    font-size: 1.5rem;
    font-family: "Courier New", monospace;
    letter-spacing: 0.2em;
    text-align: center;
    text-transform: uppercase;
    border: 2px solid var(--cm-border);
    border-radius: var(--cm-radius) 0 0 var(--cm-radius);
    border-right: none;
    outline: none;
    background: var(--cm-green-mist);
    color: var(--cm-green-dark);
    font-weight: 700;
    transition: all 0.2s ease;
}

.code-input-group input:focus {
    border-color: var(--cm-green-medium);
    background: var(--cm-white);
    box-shadow: 0 0 0 3px rgba(0, 122, 62, 0.08);
}

.code-input-group input::placeholder {
    color: var(--cm-text-muted);
    font-weight: 400;
    font-size: 1rem;
    letter-spacing: 0.05em;
}

.code-input-group button,
.btn-primary {
    padding: 0.8rem 1.6rem;
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--cm-font-body);
    color: #fff;
    background: linear-gradient(to bottom right, var(--cm-green-medium), var(--cm-green-dark));
    border: none;
    border-radius: 0 var(--cm-radius) var(--cm-radius) 0;
    flex-shrink: 0;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
    box-shadow: 0px 3px 6px 0px rgba(0, 0, 0, 0.25);
    position: relative;
}

/* No shadow on the attached button — it bleeds past the card edge */
.code-input-group button {
    box-shadow: none;
}

.code-input-group button:hover,
.btn-primary:hover {
    box-shadow: 0px 5px 12px 0px rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.code-input-group button:active,
.btn-primary:active {
    transform: translateY(0);
}

.code-input-group button:disabled,
.btn-primary:disabled {
    background: #9ca3a0;
    box-shadow: none;
    cursor: not-allowed;
    opacity: 1;
    transform: none;
}

/* Standalone primary button (not in code-input-group) */
.step > .btn-primary {
    border-radius: var(--cm-radius-pill);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-danger {
    padding: 0.8rem 1.6rem;
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--cm-font-body);
    color: #fff;
    background: linear-gradient(135deg, #e53e3e, var(--cm-error-red));
    border: none;
    border-radius: var(--cm-radius-pill);
    cursor: pointer;
    box-shadow: 0px 3px 6px 0px rgba(0, 0, 0, 0.25);
    transition: all 0.25s ease;
}

.btn-danger:hover {
    box-shadow: 0px 5px 12px 0px rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.btn-danger:active {
    transform: translateY(0);
}

/* Error */
.error {
    color: var(--cm-error-red);
    background: var(--cm-error-bg);
    border: 1px solid var(--cm-error-border);
    border-radius: var(--cm-radius-sm);
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    font-size: 0.88rem;
    font-weight: 500;
}

.error.hidden {
    display: none;
}

/* Info list */
.info-list {
    list-style: none;
    margin: 1.25rem 0;
}

.info-list li {
    padding: 0.5rem 0 0.5rem 2rem;
    position: relative;
    color: var(--cm-text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.info-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--cm-green-light);
    border: 1.5px solid var(--cm-green-medium);
}

.info-list li::after {
    content: "\2713";
    position: absolute;
    left: 4px;
    top: 0.7rem;
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--cm-green-dark);
    line-height: 20px;
}

/* Sharing indicator */
.sharing-indicator {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 1.1rem 1.25rem;
    background: linear-gradient(135deg, var(--cm-green-light) 0%, #ddf0e4 100%);
    border: 1px solid #b8dcc6;
    border-radius: var(--cm-radius);
    margin-bottom: 1.25rem;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--cm-success-text);
    box-shadow: 0 2px 8px rgba(0, 122, 62, 0.06);
}

.pulse {
    width: 12px;
    height: 12px;
    background: var(--cm-green-medium);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 0 3px rgba(71, 162, 71, 0.2);
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 3px rgba(71, 162, 71, 0.2); }
    50% { opacity: 0.5; transform: scale(1.15); box-shadow: 0 0 0 6px rgba(71, 162, 71, 0.1); }
}

/* Video preview */
.preview-container {
    margin-bottom: 1.5rem;
    border-radius: var(--cm-radius);
    overflow: hidden;
    background: #111;
    box-shadow: var(--cm-shadow);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.preview-container video {
    width: 100%;
    max-height: 300px;
    object-fit: contain;
}

/* Browser warning */
.browser-warning {
    color: var(--cm-near-black);
    background: linear-gradient(135deg, var(--cm-warning-bg) 0%, #fdf4d4 100%);
    border: 1px solid #e8d48c;
    border-radius: var(--cm-radius);
    padding: 1.75rem 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    box-shadow: var(--cm-shadow-sm);
}

.browser-warning.hidden {
    display: none;
}

.browser-warning-title {
    font-family: var(--cm-font-body);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--cm-warning-text);
    margin-bottom: 0.5rem;
}

.browser-warning .browser-warning-title + div {
    font-size: 0.9rem;
    color: var(--cm-text-secondary);
    line-height: 1.6;
}

/* LO connection status */
.lo-status {
    padding: 0.6rem 1.1rem;
    border-radius: var(--cm-radius-sm);
    font-size: 0.88rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    text-align: center;
    transition: all 0.3s ease;
}

.lo-waiting {
    background: var(--cm-warning-bg);
    color: var(--cm-warning-text);
    border: 1px solid #e8d48c;
}

.lo-connected {
    background: var(--cm-green-light);
    color: var(--cm-success-text);
    border: 1px solid #b8dcc6;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--cm-border-light);
    color: var(--cm-text-muted);
    font-size: 0.82rem;
    letter-spacing: 0.01em;
}

/* Mobile adjustments */
@media (max-width: 480px) {
    .container {
        padding: 1.25rem 1rem;
    }

    .code-input-group {
        flex-direction: column;
        gap: 0.75rem;
    }

    .code-input-group input {
        font-size: 1.25rem;
        border-radius: var(--cm-radius);
        border-right: 2px solid var(--cm-border);
    }

    .code-input-group button {
        border-radius: var(--cm-radius-pill);
    }

    .step {
        padding: 1.5rem 1.25rem;
        border-radius: var(--cm-radius);
    }

    .header-logo {
        max-width: 220px;
    }

    .info-list li {
        font-size: 0.85rem;
    }
}

/* Focus indicators for keyboard navigation */
.code-input-group button:focus-visible,
.btn-primary:focus-visible,
.btn-danger:focus-visible {
    outline: 2px solid var(--cm-green-dark);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}