/* ============================================
   Reliable Tax Prep - Custom Styles
   Classic & Elegant Design System
   ============================================ */

/* Base & Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0f3f9;
}
::-webkit-scrollbar-thumb {
    background: #7e94c4;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #5370b2;
}

/* Selection */
::selection {
    background: #bcebd7;
    color: #0a1628;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.animate-fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.revealed {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed {
    opacity: 1;
    transform: scale(1);
}

/* ============================================
   Typography
   ============================================ */

.section-eyebrow {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #7dd3c0;
    background: rgba(125, 211, 192, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    border: 1px solid rgba(125, 211, 192, 0.2);
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
    color: #0a1628;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #5370b2;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================================
   Navigation
   ============================================ */

#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 30px rgba(10, 22, 40, 0.08);
}

#navbar.scrolled .nav-link {
    color: #152a66;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #7dd3c0;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* CTA Button */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: #7dd3c0;
    color: #0a1628;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: 12px;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(125, 211, 192, 0.3);
    text-decoration: none;
}

.cta-button:hover {
    background: #4fbfa9;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(125, 211, 192, 0.4);
}

.cta-button:active {
    transform: translateY(0);
}

/* Mobile Menu */
#mobile-menu {
    transition: opacity 0.3s ease, pointer-events 0.3s ease;
}

#mobile-menu.active {
    opacity: 1;
    pointer-events: all;
}

.mobile-link {
    transition: color 0.3s ease;
}

.menu-line {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#mobile-menu-btn.active .menu-line:nth-child(3) {
    width: 5rem;
    margin-left: 0;
    transform: rotate(-45deg) translate(4px, -4px);
}

/* ============================================
   Service Cards
   ============================================ */

.service-card {
    perspective: 1000px;
}

.service-card-inner {
    position: relative;
    padding: 2rem;
    border-radius: 20px;
    background: white;
    border: 1px solid #d4dbe8;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.service-card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #7dd3c0, #4fbfa9);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-card:hover .service-card-inner {
    border-color: #bcebd7;
    box-shadow: 0 20px 60px rgba(10, 22, 40, 0.1);
    transform: translateY(-4px);
}

.service-card:hover .service-card-inner::before {
    transform: scaleX(1);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, #f0f3f9, #e0f5ec);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0a1628;
    margin-bottom: 1.25rem;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: linear-gradient(135deg, #7dd3c0, #4fbfa9);
    color: #0a1628;
    transform: scale(1.05);
}

.service-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: #0a1628;
    margin-bottom: 0.75rem;
}

.service-description {
    font-size: 0.9375rem;
    color: #5370b2;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

.service-arrow {
    display: flex;
    color: #7dd3c0;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.service-card:hover .service-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   Testimonial Cards
   ============================================ */

.testimonial-card {
    perspective: 1000px;
}

.testimonial-card-inner {
    padding: 2rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(125, 211, 192, 0.15);
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-card:hover .testimonial-card-inner {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(125, 211, 192, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

/* ============================================
   Form Styles
   ============================================ */

input:focus,
select:focus,
textarea:focus {
    box-shadow: 0 0 0 3px rgba(125, 211, 192, 0.2);
}

/* ============================================
   Utility & Helper Classes
   ============================================ */

.hover-lift {
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(10, 22, 40, 0.12);
}

/* Stagger animation delays for grid items */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ============================================
   Responsive Adjustments
   ============================================ */

@media (max-width: 768px) {
    .section-title {
        font-size: 1.75rem;
    }

    .service-card-inner {
        padding: 1.5rem;
    }

    .service-arrow {
        display: none;
    }

    #navbar {
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        box-shadow: 0 1px 20px rgba(10, 22, 40, 0.08);
    }

    #navbar .nav-link {
        color: #152a66;
    }
}

@media (max-width: 480px) {
    .cta-button {
        width: 100%;
        text-align: center;
    }

    .service-card-inner {
        padding: 1.25rem;
    }
}