/* Production-ready GTKP Website CSS */
:root {
    /* Production-ready darker blue color scheme */
    --primary-blue: #0f172a;      /* Very dark slate blue */
    --secondary-blue: #1e40af;    /* Royal blue */
    --accent-blue: #3b82f6;       /* Bright blue */
    --light-blue: #dbeafe;        /* Light blue backgrounds */
    --dark-blue: #1e3a8a;         /* Dark blue accents */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --medium-gray: #64748b;
    --dark-gray: #1f2937;
    --text-gray: #6b7280;
    --success-green: #10b981;
    --error-red: #ef4444;
    --warning-yellow: #f59e0b;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Georgia', serif;
    line-height: 1.7;
    color: var(--dark-gray);
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 50%, var(--secondary-blue) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}

header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo-section {
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    font-family: 'Times New Roman', serif;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.tagline {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.85);
    font-style: italic;
    margin-top: 0.2rem;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: rgba(255,255,255,0.1);
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--white);
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

nav {
    transition: all 0.3s ease;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
}

nav a {
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    padding: 1rem 2rem;
    border-radius: 50px;
    background: linear-gradient(135deg, var(--accent-blue), var(--secondary-blue));
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    border: 2px solid transparent;
}

nav a:hover {
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
}

.section-box {
    background: var(--white);
    margin: 2rem 0;
    border-radius: 20px;
    box-shadow: 0 25px 80px rgba(15, 23, 42, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.hero {
    text-align: center;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.03), rgba(15, 23, 42, 0.03));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: var(--primary-blue);
    font-weight: 400;
    font-family: 'Times New Roman', serif;
    animation: fadeInUp 0.8s ease;
    text-shadow: 0 2px 4px rgba(15, 23, 42, 0.1);
}

.hero .subtitle {
    font-size: 1.6rem;
    color: var(--secondary-blue);
    margin-bottom: 1.5rem;
    font-weight: 300;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    color: var(--text-gray);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.credentials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.credential-item {
    text-align: center;
    color: var(--primary-blue);
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--white), #f8fafc);
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid var(--light-blue);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.1);
}

.credential-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(30, 64, 175, 0.2);
    border-color: var(--secondary-blue);
    background: var(--white);
}

.credential-item .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-blue);
    text-shadow: 0 2px 4px rgba(30, 64, 175, 0.2);
}

.credential-item .title {
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-blue);
}

.credential-item .subtitle {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
    color: var(--white);
    padding: 1.5rem 3rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 15px 40px rgba(30, 64, 175, 0.4);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.8s ease 0.8s both;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    transition: left 0.3s ease;
    z-index: -1;
}

.cta-button:hover::before {
    left: 0;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 50px rgba(30, 64, 175, 0.5);
}

.services {
    padding: 6rem 0;
}

.services h2 {
    text-align: center;
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
    font-weight: 400;
    font-family: 'Times New Roman', serif;
    text-shadow: 0 2px 4px rgba(15, 23, 42, 0.1);
}

.services .section-subtitle {
    text-align: center;
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2.5rem;
}

.service-card {
    background: linear-gradient(135deg, var(--white), #f8fafc);
    padding: 2.5rem;
    border-radius: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    border: 2px solid var(--light-blue);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.1);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
    transition: width 0.3s ease;
}

.service-card:hover::before {
    width: 100%;
    opacity: 0.03;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 70px rgba(30, 64, 175, 0.2);
    border-color: var(--secondary-blue);
    background: var(--white);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-blue);
    font-weight: 600;
    position: relative;
    z-index: 2;
}

.service-card p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.service-card .features {
    list-style: none;
    padding-left: 0;
    position: relative;
    z-index: 2;
}

.service-card .features li {
    padding: 0.5rem 0;
    color: var(--dark-gray);
    position: relative;
    padding-left: 2rem;
}

.service-card .features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-green);
    font-weight: bold;
    font-size: 1.2rem;
}

.onboarding-section {
    padding: 6rem 0;
}

.onboarding-section h2 {
    text-align: center;
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-weight: 400;
    font-family: 'Times New Roman', serif;
    text-shadow: 0 2px 4px rgba(15, 23, 42, 0.1);
}

.intro-text {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.form-container {
    max-width: 1000px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--white), #f8fafc);
    padding: 3rem;
    border-radius: 20px;
    border: 2px solid var(--light-blue);
    box-shadow: 0 20px 60px rgba(30, 64, 175, 0.15);
}

.form-step {
    display: none;
}

.form-step.active {
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid var(--light-blue);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(30, 64, 175, 0.05);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-blue);
    box-shadow: 0 0 0 4px rgba(30, 64, 175, 0.1);
    transform: translateY(-2px);
}

.form-group input[readonly] {
    background-color: var(--light-gray) !important;
    cursor: not-allowed;
    color: var(--medium-gray);
}

.checkbox-group {
    margin-top: 1rem;
}

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    font-weight: 400;
    cursor: pointer;
    padding: 0.8rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.checkbox-group label:hover {
    background: var(--light-blue);
    border-color: var(--secondary-blue);
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 1rem;
    margin-top: 0.2rem;
    transform: scale(1.3);
    flex-shrink: 0;
    accent-color: var(--secondary-blue);
}

.children-ages {
    display: none;
    margin-top: 1rem;
}

.children-ages.show {
    display: block;
}

.btn {
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
    color: var(--white);
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.3);
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    transition: left 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(30, 64, 175, 0.4);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--medium-gray), var(--text-gray));
    box-shadow: 0 8px 25px rgba(100, 116, 139, 0.3);
}

.btn-secondary::before {
    background: linear-gradient(135deg, var(--text-gray), var(--medium-gray));
}

.btn-secondary:hover {
    box-shadow: 0 15px 40px rgba(100, 116, 139, 0.4);
}

.progress-bar {
    width: 100%;
    height: 14px;
    background: var(--light-blue);
    border-radius: 8px;
    margin-bottom: 2rem;
    overflow: hidden;
    box-shadow: inset 0 2px 8px rgba(30, 64, 175, 0.1);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-blue), var(--primary-blue));
    transition: width 0.6s ease;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 2px 8px rgba(30, 64, 175, 0.3);
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 35%, rgba(255,255,255,0.4) 50%, transparent 65%);
    animation: shine 2.5s infinite;
}

.security-notice {
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border: 2px solid var(--success-green);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.15);
}

.security-notice .icon {
    font-size: 2.5rem;
    color: var(--success-green);
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(16, 185, 129, 0.2);
}

.contact-section {
    padding: 4rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    text-align: center;
}

.contact-card {
    padding: 2rem;
    background: linear-gradient(135deg, var(--white), #f8fafc);
    border-radius: 15px;
    border: 2px solid var(--light-blue);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.1);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(30, 64, 175, 0.2);
    border-color: var(--secondary-blue);
    background: var(--white);
}

.contact-card .icon {
    font-size: 2.5rem;
    color: var(--secondary-blue);
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(30, 64, 175, 0.2);
}

.contact-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-card p {
    color: var(--text-gray);
    font-weight: 500;
}

footer {
    background: linear-gradient(135deg, var(--primary-blue), var(--dark-blue));
    color: var(--white);
    text-align: center;
    padding: 3rem 0;
    margin-top: 2rem;
    box-shadow: 0 -10px 40px rgba(15, 23, 42, 0.3);
}

footer p {
    margin-bottom: 1rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.age-calculated {
    background-color: #ecfdf5 !important;
    border-color: var(--success-green) !important;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1) !important;
}

.field-error {
    border-color: var(--error-red) !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1) !important;
}

.field-success {
    border-color: var(--success-green) !important;
    box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1) !important;
}

/* Loading states for production */
.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--light-blue);
    border-top-color: var(--secondary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shine {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Production-ready media queries */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    .header-content {
        flex-wrap: nowrap;
    }

    .logo {
        font-size: 1.6rem;
    }

    .tagline {
        font-size: 0.7rem;
    }

    .mobile-menu-toggle {
        display: block;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        border-top: 1px solid rgba(255,255,255,0.1);
        box-shadow: 0 10px 40px rgba(15, 23, 42, 0.5);
    }

    nav.active {
        max-height: 400px;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
        padding: 1.5rem 0;
    }

    nav a {
        display: block;
        padding: 1.2rem 2rem;
        border-radius: 25px;
        border-bottom: none;
        font-size: 1rem;
        margin: 0.5rem 1rem;
        background: linear-gradient(135deg, var(--accent-blue), var(--secondary-blue));
        box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
        text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    }

    nav a:last-child {
        border-bottom: none;
    }

    nav a:hover {
        background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
        transform: translateY(-2px);
        box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
    }

    .hero {
        padding: 4rem 0;
        margin: 1rem 0;
    }

    .hero h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero .subtitle {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    .hero p {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    .credentials {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .credential-item {
        padding: 1.2rem;
    }

    .credential-item .icon {
        font-size: 2.2rem;
        margin-bottom: 0.5rem;
    }

    .credential-item .title {
        font-size: 0.9rem;
    }

    .credential-item .subtitle {
        font-size: 0.8rem;
    }

    .cta-button {
        padding: 1.3rem 2.2rem;
        font-size: 1.1rem;
    }

    .services {
        padding: 4rem 0;
        margin: 1rem 0;
    }

    .services h2 {
        font-size: 2.8rem;
        margin-bottom: 0.5rem;
    }

    .services .section-subtitle {
        font-size: 1.2rem;
        margin-bottom: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .service-card {
        padding: 2rem;
    }

    .service-card h3 {
        font-size: 1.4rem;
    }

    .onboarding-section {
        padding: 4rem 0;
        margin: 1rem 0;
    }

    .onboarding-section h2 {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .intro-text {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }

    .form-container {
        padding: 2rem;
        margin: 0 0.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-group label {
        font-size: 0.95rem;
        margin-bottom: 0.6rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 1.1rem;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .checkbox-group label {
        padding: 0.7rem;
        font-size: 0.9rem;
    }

    .btn {
        padding: 1.1rem 2rem;
        font-size: 1rem;
        margin: 0.3rem;
    }

    .contact-section {
        padding: 3rem 0;
        margin: 1rem 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-card {
        padding: 2rem;
    }

    footer {
        padding: 2.5rem 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1.2rem;
    }

    .credentials {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .services h2 {
        font-size: 2.2rem;
    }

    .onboarding-section h2 {
        font-size: 2rem;
    }

    .form-container {
        padding: 1.5rem;
        margin: 0;
        border-radius: 15px;
    }

    .cta-button {
        padding: 1.2rem 1.8rem;
        font-size: 1rem;
    }
}

/* Print styles for professional documents */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .section-box {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    nav, .mobile-menu-toggle, .cta-button {
        display: none;
    }
}