/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-md);
    font-weight: 500;
    text-align: center;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--color-secondary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-submit {
    width: 100%;
    font-size: var(--font-size-lg);
    padding: var(--spacing-md);
}

/* Speaker Cards */
.speaker-card {
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-medium);
}

.speaker-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.speaker-image {
    margin-bottom: var(--spacing-md);
}

.speaker-image img {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-md);
}

.speaker-placeholder {
    width: 200px;
    height: 200px;
    margin: 0 auto;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.speaker-initials {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--color-white);
    font-family: var(--font-heading);
}

.speaker-name {
    font-size: var(--font-size-xl);
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.speaker-title {
    font-size: var(--font-size-md);
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.speaker-bio {
    font-size: var(--font-size-sm);
    color: var(--color-gray);
    line-height: 1.7;
}

/* Mobile Adaptations */
@media (max-width: 767px) {
    .btn {
        padding: 12px var(--spacing-md);
        font-size: var(--font-size-sm);
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    .btn-submit {
        font-size: var(--font-size-md);
        padding: 14px var(--spacing-md);
        min-height: 48px;
    }

    .speaker-card {
        padding: var(--spacing-md);
    }

    .speaker-card:hover {
        transform: none;
    }

    .speaker-image img,
    .speaker-placeholder {
        width: 150px;
        height: 150px;
    }

    .speaker-name {
        font-size: var(--font-size-lg);
    }

    .speaker-title {
        font-size: var(--font-size-sm);
    }

    .speaker-bio {
        font-size: 14px;
    }

    /* Pricing */
    .section-subtitle {
        font-size: 14px;
    }

    .pricing-info {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xs);
    }

    .price-card {
        padding: var(--spacing-sm);
    }

    .price-card .price {
        font-size: var(--font-size-xl);
    }

    .price-card p {
        font-size: 12px;
    }

    /* Payment Info */
    .payment-info {
        padding: var(--spacing-md);
        margin-bottom: 0;
    }

    .payment-info h3 {
        font-size: var(--font-size-md);
        margin-bottom: var(--spacing-xs);
    }

    .steps-hint {
        font-size: 12px;
        margin-bottom: var(--spacing-xs);
    }

    .registration-steps {
        font-size: 14px;
        margin-left: calc(-1 * var(--spacing-sm));
        padding-left: var(--spacing-sm);
        margin-bottom: var(--spacing-xs);
    }

    .registration-steps li {
        margin-bottom: 2px;
        padding-left: 24px;
    }

    .registration-steps li::before {
        font-size: var(--font-size-sm);
    }

    /* Form Mobile */
    .registration-form {
        padding: var(--spacing-sm);
    }

    .form-group {
        margin-bottom: var(--spacing-xs);
    }

    /* Payment Details Mobile */
    .payment-phone {
        font-size: clamp(16px, 4.5vw, 20px);
        letter-spacing: clamp(-1px, -0.3vw, -0.5px);
    }

    .payment-header {
        font-size: var(--font-size-sm);
    }

    .payment-bank {
        font-size: clamp(11px, 2.8vw, 13px);
    }

    .payment-note {
        font-size: 12px;
    }

    .payment-details {
        padding: var(--spacing-sm);
    }

    .registration-instruction {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm);
    }
}

/* Section Subtitle */
.section-subtitle {
    font-size: var(--font-size-md);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

/* Pricing Info */
.pricing-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.price-card {
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-md) var(--spacing-sm);
    border-radius: var(--radius-md);
    text-align: center;
    border: 1.5px solid rgba(255, 255, 255, 0.15);
    transition: all var(--transition-fast);
}

.price-card.primary {
    border-color: var(--color-secondary);
    background-color: rgba(200, 178, 153, 0.15);
}

.price-card.secondary {
    opacity: 0.85;
}

.price-card .price {
    display: block;
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 4px;
    font-family: var(--font-heading);
}

.price-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.3;
    margin-bottom: 0;
}

/* Payment Info */
.payment-info {
    background-color: rgba(255, 255, 255, 0.08);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: 0;
}

.payment-info h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.steps-hint {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
    font-weight: 400;
}

.registration-steps {
    margin-left: calc(-1 * var(--spacing-md));
    padding-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    list-style: none;
    counter-reset: step-counter;
}

.registration-steps li {
    margin-bottom: 4px;
    line-height: 1.4;
    counter-increment: step-counter;
    position: relative;
    padding-left: 28px;
}

.registration-steps li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: 700;
    font-size: var(--font-size-lg);
}

/* Payment Details Block */
.payment-details {
    background-color: rgba(255, 255, 255, 0.12);
    border: 1.5px solid var(--color-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-sm) 0 0 0;
    text-align: center;
}

.payment-header {
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.payment-phone {
    display: block;
    color: var(--color-secondary);
    font-size: clamp(18px, 5vw, 28px);
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
    letter-spacing: clamp(-1px, -0.2vw, 0.5px);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
}

.payment-phone:hover {
    color: var(--color-white);
    transform: scale(1.02);
}

.payment-bank {
    color: rgba(255, 255, 255, 0.7);
    font-size: clamp(12px, 3vw, 14px);
    font-weight: 400;
    margin-bottom: 0;
    white-space: nowrap;
}

.payment-note {
    margin-top: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.75);
    font-size: 13px;
    line-height: 1.4;
    text-align: center;
}

.payment-note svg {
    opacity: 0.8;
}

.registration-instruction {
    background-color: rgba(255, 255, 255, 0.12);
    border-left: 4px solid var(--color-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    color: var(--color-white);
    font-size: var(--font-size-md);
    font-weight: 500;
    text-align: center;
}

/* Registration Closed */
.registration-closed {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
}

.registration-closed .closed-icon {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
}

.registration-closed h3 {
    color: var(--color-dark);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.registration-closed p {
    color: var(--color-gray);
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-lg);
}

.registration-closed .onsite-price {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: var(--color-light);
    border-radius: var(--radius-md);
}

.registration-closed .onsite-price .price {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.registration-closed .onsite-price span:last-child {
    font-size: var(--font-size-sm);
    color: var(--color-gray);
}

/* Registration Form */
.registration-form {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-dark);
    font-size: var(--font-size-sm);
}

.form-group .required {
    color: var(--color-error);
    opacity: 0.6;
    font-weight: 400;
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-light);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    background-color: var(--color-white);
}

.form-group input[type="file"] {
    padding: var(--spacing-sm);
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    padding: var(--spacing-xs) var(--spacing-md);
    margin-right: var(--spacing-sm);
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.form-group input[type="file"]::file-selector-button:hover {
    background-color: var(--color-secondary);
}

.form-group .file-info {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-gray);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(121, 120, 90, 0.1);
}

.form-group input.error {
    border-color: var(--color-error);
}

.form-group input.success {
    border-color: var(--color-success);
}

.form-group .error-message {
    display: block;
    margin-top: 4px;
    font-size: var(--font-size-xs);
    color: var(--color-error);
    min-height: 0;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    transform: scale(0.8);
    transition: transform var(--transition-medium);
}

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

.modal-header {
    margin-bottom: var(--spacing-lg);
}

.modal-header svg {
    margin: 0 auto var(--spacing-md);
}

.modal-header h3 {
    color: var(--color-success);
    font-size: var(--font-size-2xl);
}

.modal-content p {
    font-size: var(--font-size-md);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
}

.modal-content .btn {
    min-width: 150px;
}

/* Fade-in Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading state for button */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 3px solid var(--color-white);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

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