/* ===== VARIABLES ===== */
:root {
    /* ===== Color Palette ===== */
    /* Primary Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #8b5cf6;
    --secondary-dark: #7c3aed;
    --accent-color: #ec4899;
    --accent-dark: #db2777;
    
    /* Neutral Colors */
    --dark-blue: #1e1b4b;
    --light-purple: #ddd6fe;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Text Colors */
    --text-dark: #1f2937;
    --text-medium: #374151;
    --text-light: #6b7280;
    --text-lighter: #9ca3af;
    
    /* Background Colors */
    --bg-light: #f9fafb;
    --bg-lighter: #f3f4f6;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    /* ===== Typography ===== */
    --font-family: 'Poppins', sans-serif;
    --font-family-heading: 'Poppins', sans-serif;
    
    /* Font Sizes */
    --font-size-xl: 3rem;        /* 48px */
    --font-size-lg: 2rem;        /* 32px */
    --font-size-md: 1.5rem;      /* 24px */
    --font-size-base: 1rem;      /* 16px */
    --font-size-sm: 0.875rem;    /* 14px */
    --font-size-xs: 0.75rem;     /* 12px */
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
    
    /* ===== Spacing System ===== */
    --spacing-xs: 0.5rem;     /* 8px */
    --spacing-sm: 1rem;       /* 16px */
    --spacing-md: 1.5rem;     /* 24px */
    --spacing-lg: 2rem;       /* 32px */
    --spacing-xl: 3rem;       /* 48px */
    --spacing-2xl: 4rem;      /* 64px */
    --spacing-3xl: 6rem;      /* 96px */
    
    /* ===== Layout ===== */
    --container-width: 1200px;
    --container-width-sm: 900px;
    --header-height: 5rem;
    --section-padding: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    --radius-full: 9999px;
    
    /* ===== Transitions & Animations ===== */
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
    --transition-cubic: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* ===== Shadows ===== */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    --shadow-colored: 0 10px 30px rgba(99, 102, 241, 0.2);
    
    /* Z-index Scale */
    --z-dropdown: 10;
    --z-sticky: 20;
    --z-fixed: 100;
    --z-modal: 1000;
    --z-tooltip: 1500;
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-regular);
    color: var(--text-dark);
    line-height: var(--line-height-normal);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* ===== Typography Base ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-bold);
    line-height: var(--line-height-tight);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-xl); }
h2 { font-size: var(--font-size-lg); }
h3 { font-size: var(--font-size-md); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-relaxed);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

input,
textarea,
select {
    font-family: inherit;
    border: none;
    outline: none;
}

/* ===== REUSABLE CLASSES ===== */
.container {
    max-width: var(--container-width);
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.container-sm {
    max-width: var(--container-width-sm);
}

.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section--dark {
    background-color: var(--dark-blue);
    color: var(--bg-white);
}

.section--light {
    background-color: var(--bg-white);
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: 0 var(--spacing-md);
}

.section__subtitle {
    display: inline-block;
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
    position: relative;
}

.section__subtitle::before {
    content: '';
    display: inline-block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color));
    margin-right: var(--spacing-sm);
    vertical-align: middle;
}

.section__subtitle::after {
    content: '';
    display: inline-block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    margin-left: var(--spacing-sm);
    vertical-align: middle;
}

.section__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    position: relative;
    display: inline-block;
}

.section__header .section__title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== BUTTONS ===== */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-base);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-cubic);
    border: none;
    outline: none;
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.button:hover::before {
    width: 300px;
    height: 300px;
}

.button--primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-white);
    box-shadow: var(--shadow-colored);
}

.button--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.3);
}

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

.button--ghost {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.button--ghost:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.button--secondary {
    background: var(--bg-white);
    color: var(--primary-color);
    border: 2px solid var(--border-color);
}

.button--secondary:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.button--block {
    width: 100%;
    display: flex;
}

.button--sm {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
}

.button--lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: var(--z-fixed);
    transition: var(--transition);
}

.header.scroll-header {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem 0;
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.nav__logo {
    font-size: 1.5rem;
    font-weight: var(--font-bold);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition);
    z-index: var(--z-fixed);
}

.nav__logo:hover {
    transform: scale(1.05);
}

.nav__logo i {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav__item {
    position: relative;
}

.nav__link {
    color: var(--text-medium);
    font-weight: var(--font-medium);
    font-size: var(--font-size-base);
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: var(--transition);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-full);
    transition: var(--transition-cubic);
}

.nav__link:hover {
    color: var(--primary-color);
}

.nav__link:hover::after,
.nav__link.active-link::after {
    width: 100%;
}

.nav__link.active-link {
    color: var(--primary-color);
    font-weight: var(--font-semibold);
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* ===== HERO SECTION ===== */
.hero {
    padding-top: calc(var(--header-height) + var(--spacing-3xl));
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--light-purple) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero__container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    align-items: center;
}

.hero__content {
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.15));
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.6s ease-out;
    box-shadow: var(--shadow-sm);
}

.hero__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.5px;
}

.hero__description {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat-card {
    background: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: 1.25rem;
    box-shadow: var(--shadow-lg);
    text-align: center;
    min-width: 140px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(99, 102, 241, 0.15);
    border-color: var(--primary-color);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

.hero__blob {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
}

.hero__blob svg {
    width: 100%;
    height: auto;
    animation: blob-animation 8s ease-in-out infinite;
}

.hero__blob-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    color: var(--bg-white);
    animation: float 3s ease-in-out infinite;
}

@keyframes blob-animation {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.05) rotate(5deg); }
}

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

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--bg-white);
    position: relative;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.service-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 1.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03), rgba(236, 72, 153, 0.03));
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
    border-color: var(--primary-color);
}

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

.service-card:hover::after {
    opacity: 1;
}

.service-card__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.25rem;
    color: var(--bg-white);
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
    position: relative;
    z-index: 1;
    transition: var(--transition);
}

.service-card:hover .service-card__icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.service-card__title {
    font-size: var(--font-size-md);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.service-card__description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.service-card__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.service-card__features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

.service-card__features i {
    color: var(--success-color);
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-light);
}

.about__container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    align-items: center;
}

.about__image-wrapper {
    width: 100%;
    max-width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10rem;
    color: var(--bg-white);
    margin: 0 auto;
    animation: float 3s ease-in-out infinite;
}

.about__content .section__subtitle {
    display: inline-block;
}

.about__description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.about__feature {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.about__feature i {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
}

.about__feature h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.about__feature p {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-white);
}

.contact__container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact__info h3 {
    font-size: var(--font-size-md);
    margin-bottom: var(--spacing-sm);
}

.contact__info > p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact__detail {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.contact__detail i {
    font-size: 2rem;
    color: var(--primary-color);
}

.contact__detail h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.contact__detail a {
    color: var(--text-light);
}

.contact__detail a:hover {
    color: var(--primary-color);
}

.contact__social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--bg-white);
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ===== FORM ===== */
.contact__form {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 1.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

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

.form__group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.form__group input,
.form__group textarea,
.form__group select {
    width: 100%;
    padding: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background: var(--bg-white);
    color: var(--text-dark);
    transition: var(--transition);
}

.form__group input:focus,
.form__group textarea:focus,
.form__group select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form__group textarea {
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-blue);
    color: var(--bg-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition);
}

.footer__social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer__subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

.footer__links,
.footer__contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a,
.footer__contact a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer__links a:hover,
.footer__contact a:hover {
    color: var(--bg-white);
    padding-left: var(--spacing-xs);
}

.footer__contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer__contact i {
    color: var(--primary-color);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

.footer__bottom p {
    margin-bottom: var(--spacing-xs);
}

.footer__bottom i {
    color: var(--accent-color);
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-float {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background: var(--success-color);
    border-radius: 50%;
    color: var(--bg-white);
    font-size: 2rem;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    transition: var(--transition);
    z-index: 100;
    animation: pulse-whatsapp 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
}

@keyframes pulse-whatsapp {
    0% {
        box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(16, 185, 129, 0.7);
    }
    100% {
        box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
    }
}

/* ===== SCROLL TO TOP ===== */
.scrolltop {
    position: fixed;
    right: 2rem;
    bottom: -20%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    color: var(--bg-white);
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 10;
}

.scrolltop:hover {
    transform: translateY(-5px);
}

.show-scroll {
    bottom: 6rem;
}

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 1024px) {
    :root {
        --font-size-xl: 2.5rem;
        --font-size-lg: 1.75rem;
        --font-size-md: 1.25rem;
    }
    
    .hero__container,
    .about__container,
    .contact__container {
        grid-template-columns: 1fr;
    }
    
    .hero__image,
    .about__image {
        order: -1;
    }
    
    .hero__blob,
    .about__image-wrapper {
        max-width: 300px;
    }
}

@media screen and (max-width: 768px) {
    :root {
        --font-size-xl: 2rem;
        --font-size-lg: 1.5rem;
        --spacing-2xl: 3rem;
    }
    
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--bg-white);
        padding: var(--spacing-xl) var(--spacing-lg);
        box-shadow: var(--shadow-xl);
        transition: var(--transition);
    }
    
    .nav__menu.show-menu {
        right: 0;
    }
    
    .nav__list {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .nav__toggle,
    .nav__close {
        display: block;
    }
    
    .nav__close {
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
    
    .services__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 480px) {
    :root {
        --font-size-xl: 1.75rem;
        --spacing-xl: 2rem;
    }
    
    .hero__buttons {
        flex-direction: column;
    }
    
    .button {
        width: 100%;
        justify-content: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .stat-card {
        flex: 1;
        min-width: 100px;
    }
    
    .hero__blob-icon {
        font-size: 3rem;
    }
    
    .about__image-wrapper {
        height: 300px;
        font-size: 7rem;
    }
    
    .whatsapp-float {
        right: 1rem;
        bottom: 1rem;
        width: 55px;
        height: 55px;
        font-size: 1.75rem;
    }
    
    .show-scroll {
        bottom: 5rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-accent { color: var(--accent-color); }
.text-muted { color: var(--text-light); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

/* ===== 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(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}