.initial-state {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background:
        radial-gradient(800px 500px at 50% 30%, rgba(255, 45, 85, 0.12), transparent 60%),
        radial-gradient(600px 400px at 50% 80%, rgba(120, 80, 255, 0.10), transparent 60%);
    z-index: 50;
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
    padding-top: var(--safe-area-top);
}

.initial-state.hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(1.04);
    transition: none;
}

.initial-content {
    text-align: center;
    width: min(92%, 360px);
    padding: var(--space-7) var(--space-6);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(40px) saturate(180%);
    -webkit-backdrop-filter: blur(40px) saturate(180%);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.initial-content::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
            mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
            mask-composite: exclude;
    pointer-events: none;
}

.logo-placeholder {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--space-5);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--accent) 0%, #ff6b8a 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    position: relative;
    animation: float 4s var(--ease-in-out) infinite;
}

.logo-placeholder svg {
    width: 32px;
    height: 32px;
    stroke: white;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.initial-content h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-2);
    background: linear-gradient(180deg, #ffffff 0%, rgba(255, 255, 255, 0.78) 100%);
    -webkit-background-clip: text;
            background-clip: text;
    -webkit-text-fill-color: transparent;
}

.initial-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-7);
    font-size: 14px;
}

.options {
    margin-top: var(--space-5);
    display: flex;
    justify-content: center;
}

.checkbox-wrapper {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
    gap: var(--space-2);
    padding: 6px 10px;
    border-radius: var(--radius-pill);
    transition: background var(--duration-fast) var(--ease-out);
}

.checkbox-wrapper:hover {
    background: var(--bg-glass);
}

.checkbox-wrapper input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.checkbox-custom {
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--text-tertiary);
    border-radius: 5px;
    position: relative;
    transition: all var(--duration-fast) var(--ease-out);
    flex-shrink: 0;
}

.checkbox-wrapper input:checked + .checkbox-custom {
    background: var(--accent);
    border-color: var(--accent);
}

.checkbox-wrapper input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1.5px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.label-text {
    font-size: 13px;
    color: var(--text-secondary);
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 14px var(--space-6);
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    width: 100%;
    transition: transform var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                filter var(--duration-fast) var(--ease-out);
    box-shadow: 0 8px 24px var(--accent-glow);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.primary-btn:hover {
    filter: brightness(1.08);
    box-shadow: 0 12px 32px var(--accent-glow);
}

.primary-btn:active {
    transform: scale(0.97);
}

.secondary-btn {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    padding: 12px var(--space-5);
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    width: 100%;
    transition: background var(--duration-fast) var(--ease-out),
                border-color var(--duration-fast) var(--ease-out);
}

.secondary-btn:hover {
    background: var(--bg-glass-strong);
    border-color: var(--border-strong);
}

.secondary-btn:active {
    transform: scale(0.97);
}

.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 13, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 100;
    gap: var(--space-4);
    padding: var(--space-6);
}

.spinner {
    width: 36px;
    height: 36px;
    border: 2.5px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    border-top-color: var(--accent);
    border-right-color: var(--accent);
    animation: spin 0.9s cubic-bezier(0.5, 0.1, 0.5, 0.9) infinite;
    margin-bottom: var(--space-2);
}

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

#loadingText {
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
}

#loadingProgress {
    font-size: 12px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 300;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-base) var(--ease-out);
    padding: var(--space-5);
}

.modal-overlay.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    width: 100%;
    max-width: 320px;
    padding: var(--space-7) var(--space-6) var(--space-6);
    background: linear-gradient(180deg, rgba(28, 28, 34, 0.95) 0%, rgba(20, 20, 26, 0.95) 100%);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transform: scale(0.94);
    transition: transform var(--duration-base) var(--ease-out);
}

.modal-overlay.show .modal-card {
    transform: scale(1);
}

.modal-card h3 {
    margin-bottom: var(--space-2);
    font-size: 19px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.modal-card p {
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    font-size: 14px;
}

.modal-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.toast-container {
    position: fixed;
    top: calc(80px + var(--safe-area-top));
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    width: max-content;
    max-width: calc(100vw - 40px);
}

.toast {
    background: rgba(20, 20, 26, 0.92);
    color: var(--text-primary);
    padding: 10px var(--space-5);
    border-radius: var(--radius-pill);
    font-size: 13.5px;
    font-weight: 500;
    letter-spacing: 0.01em;
    border: 1px solid var(--border-default);
    opacity: 0;
    transform: translateY(-8px) scale(0.96);
    transition: opacity var(--duration-base) var(--ease-out),
                transform var(--duration-base) var(--ease-out);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    box-shadow: var(--shadow-md);
    white-space: nowrap;
}

.toast.show {
    opacity: 1;
    transform: translateY(0) scale(1);
}